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Finding the Fourth Proportional to 392,187.72, 588,284.18 and 107,908.30

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Solution

The fourth proportional to 392,187.72, 588,284.18 and 107,908.30 is: 161,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,187.72 : 588,284.18 = 107,908.30 : x
  2. Step 2: Convert to fraction form
    392,187.72/588,284.18 = 107,908.30/x
  3. Step 3: Cross multiply
    392,187.72x = 588,284.18 × 107,908.30
  4. Step 4: Simplify right side
    392,187.72x = 63,480,746,381.16
  5. Step 5: Solve for x
    x = 63,480,746,381.16/392,187.72
  6. Step 6: Final answer
    x = 161,863.17

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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.