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Finding the Fourth Proportional to 351,369.60, 527,092.80 and 340,310.40

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Solution

The fourth proportional to 351,369.60, 527,092.80 and 340,310.40 is: 510,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,369.60 : 527,092.80 = 340,310.40 : x
  2. Step 2: Convert to fraction form
    351,369.60/527,092.80 = 340,310.40/x
  3. Step 3: Cross multiply
    351,369.60x = 527,092.80 × 340,310.40
  4. Step 4: Simplify right side
    351,369.60x = 179,375,161,605.12
  5. Step 5: Solve for x
    x = 179,375,161,605.12/351,369.60
  6. Step 6: Final answer
    x = 510,502.79

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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.