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Finding the Fourth Proportional to 391,551.36, 587,306.88 and 229,535.34

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Solution

The fourth proportional to 391,551.36, 587,306.88 and 229,535.34 is: 344,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,551.36 : 587,306.88 = 229,535.34 : x
  2. Step 2: Convert to fraction form
    391,551.36/587,306.88 = 229,535.34/x
  3. Step 3: Cross multiply
    391,551.36x = 587,306.88 × 229,535.34
  4. Step 4: Simplify right side
    391,551.36x = 134,807,684,385.14
  5. Step 5: Solve for x
    x = 134,807,684,385.14/391,551.36
  6. Step 6: Final answer
    x = 344,291.19

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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.