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Finding the Fourth Proportional to 398,003.40, 596,486.70 and 161,152.20

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Solution

The fourth proportional to 398,003.40, 596,486.70 and 161,152.20 is: 241,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,003.40 : 596,486.70 = 161,152.20 : x
  2. Step 2: Convert to fraction form
    398,003.40/596,486.70 = 161,152.20/x
  3. Step 3: Cross multiply
    398,003.40x = 596,486.70 × 161,152.20
  4. Step 4: Simplify right side
    398,003.40x = 96,125,143,975.74
  5. Step 5: Solve for x
    x = 96,125,143,975.74/398,003.40
  6. Step 6: Final answer
    x = 241,518.40

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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.