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Finding the Fourth Proportional to 252,522.84, 378,820.26 and 83,987.64

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Solution

The fourth proportional to 252,522.84, 378,820.26 and 83,987.64 is: 125,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,522.84 : 378,820.26 = 83,987.64 : x
  2. Step 2: Convert to fraction form
    252,522.84/378,820.26 = 83,987.64/x
  3. Step 3: Cross multiply
    252,522.84x = 378,820.26 × 83,987.64
  4. Step 4: Simplify right side
    252,522.84x = 31,816,219,621.59
  5. Step 5: Solve for x
    x = 31,816,219,621.59/252,522.84
  6. Step 6: Final answer
    x = 125,993.43

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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.