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Finding the Fourth Proportional to 306,387.62, 459,593.79 and 106,728.20

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Solution

The fourth proportional to 306,387.62, 459,593.79 and 106,728.20 is: 160,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,387.62 : 459,593.79 = 106,728.20 : x
  2. Step 2: Convert to fraction form
    306,387.62/459,593.79 = 106,728.20/x
  3. Step 3: Cross multiply
    306,387.62x = 459,593.79 × 106,728.20
  4. Step 4: Simplify right side
    306,387.62x = 49,051,617,937.88
  5. Step 5: Solve for x
    x = 49,051,617,937.88/306,387.62
  6. Step 6: Final answer
    x = 160,096.61

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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.