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Finding the Fourth Proportional to 323,275.60, 484,913.56 and 86,612.24

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Solution

The fourth proportional to 323,275.60, 484,913.56 and 86,612.24 is: 129,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,275.60 : 484,913.56 = 86,612.24 : x
  2. Step 2: Convert to fraction form
    323,275.60/484,913.56 = 86,612.24/x
  3. Step 3: Cross multiply
    323,275.60x = 484,913.56 × 86,612.24
  4. Step 4: Simplify right side
    323,275.60x = 41,999,449,637.97
  5. Step 5: Solve for x
    x = 41,999,449,637.97/323,275.60
  6. Step 6: Final answer
    x = 129,918.40

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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.