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Finding the Fourth Proportional to 329,287.07, 493,892.88 and 86,151.62

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Solution

The fourth proportional to 329,287.07, 493,892.88 and 86,151.62 is: 129,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,287.07 : 493,892.88 = 86,151.62 : x
  2. Step 2: Convert to fraction form
    329,287.07/493,892.88 = 86,151.62/x
  3. Step 3: Cross multiply
    329,287.07x = 493,892.88 × 86,151.62
  4. Step 4: Simplify right side
    329,287.07x = 42,549,671,718.47
  5. Step 5: Solve for x
    x = 42,549,671,718.47/329,287.07
  6. Step 6: Final answer
    x = 129,217.56

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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.