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Finding the Fourth Proportional to 299,337.60, 449,006.40 and 240,288.60

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Solution

The fourth proportional to 299,337.60, 449,006.40 and 240,288.60 is: 360,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,337.60 : 449,006.40 = 240,288.60 : x
  2. Step 2: Convert to fraction form
    299,337.60/449,006.40 = 240,288.60/x
  3. Step 3: Cross multiply
    299,337.60x = 449,006.40 × 240,288.60
  4. Step 4: Simplify right side
    299,337.60x = 107,891,119,247.04
  5. Step 5: Solve for x
    x = 107,891,119,247.04/299,337.60
  6. Step 6: Final answer
    x = 360,432.90

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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.