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Finding the Fourth Proportional to 391,600.38, 587,401.04 and 107,293.35

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Solution

The fourth proportional to 391,600.38, 587,401.04 and 107,293.35 is: 160,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,600.38 : 587,401.04 = 107,293.35 : x
  2. Step 2: Convert to fraction form
    391,600.38/587,401.04 = 107,293.35/x
  3. Step 3: Cross multiply
    391,600.38x = 587,401.04 × 107,293.35
  4. Step 4: Simplify right side
    391,600.38x = 63,024,224,838.62
  5. Step 5: Solve for x
    x = 63,024,224,838.62/391,600.38
  6. Step 6: Final answer
    x = 160,940.15

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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.