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Finding the Fourth Proportional to 485,194.80, 727,792.20 and 169,618.80

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Solution

The fourth proportional to 485,194.80, 727,792.20 and 169,618.80 is: 254,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,194.80 : 727,792.20 = 169,618.80 : x
  2. Step 2: Convert to fraction form
    485,194.80/727,792.20 = 169,618.80/x
  3. Step 3: Cross multiply
    485,194.80x = 727,792.20 × 169,618.80
  4. Step 4: Simplify right side
    485,194.80x = 123,447,239,613.36
  5. Step 5: Solve for x
    x = 123,447,239,613.36/485,194.80
  6. Step 6: Final answer
    x = 254,428.20

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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.