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Finding the Fourth Proportional to 351,381.60, 527,110.80 and 340,322.40

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Solution

The fourth proportional to 351,381.60, 527,110.80 and 340,322.40 is: 510,520.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,381.60 : 527,110.80 = 340,322.40 : x
  2. Step 2: Convert to fraction form
    351,381.60/527,110.80 = 340,322.40/x
  3. Step 3: Cross multiply
    351,381.60x = 527,110.80 × 340,322.40
  4. Step 4: Simplify right side
    351,381.60x = 179,387,612,521.92
  5. Step 5: Solve for x
    x = 179,387,612,521.92/351,381.60
  6. Step 6: Final answer
    x = 510,520.79

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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.