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Finding the Fourth Proportional to 391,392, 587,088 and 95,904

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Solution

The fourth proportional to 391,392, 587,088 and 95,904 is: 143,856

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,392 : 587,088 = 95,904 : x
  2. Step 2: Convert to fraction form
    391,392/587,088 = 95,904/x
  3. Step 3: Cross multiply
    391,392x = 587,088 × 95,904
  4. Step 4: Simplify right side
    391,392x = 56,304,087,552
  5. Step 5: Solve for x
    x = 56,304,087,552/391,392
  6. Step 6: Final answer
    x = 143,856

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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.