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Finding the Fourth Proportional to 609,741.40, 914,612.10 and 166,509.40

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Solution

The fourth proportional to 609,741.40, 914,612.10 and 166,509.40 is: 249,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,741.40 : 914,612.10 = 166,509.40 : x
  2. Step 2: Convert to fraction form
    609,741.40/914,612.10 = 166,509.40/x
  3. Step 3: Cross multiply
    609,741.40x = 914,612.10 × 166,509.40
  4. Step 4: Simplify right side
    609,741.40x = 152,291,512,003.74
  5. Step 5: Solve for x
    x = 152,291,512,003.74/609,741.40
  6. Step 6: Final answer
    x = 249,764.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.