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Finding the Fourth Proportional to 351,385.60, 527,116.80 and 340,326.40

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Solution

The fourth proportional to 351,385.60, 527,116.80 and 340,326.40 is: 510,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,385.60 : 527,116.80 = 340,326.40 : x
  2. Step 2: Convert to fraction form
    351,385.60/527,116.80 = 340,326.40/x
  3. Step 3: Cross multiply
    351,385.60x = 527,116.80 × 340,326.40
  4. Step 4: Simplify right side
    351,385.60x = 179,391,762,923.52
  5. Step 5: Solve for x
    x = 179,391,762,923.52/351,385.60
  6. Step 6: Final answer
    x = 510,526.79

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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.