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Finding the Fourth Proportional to 399,648.48, 599,495.76 and 150,332.64

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Solution

The fourth proportional to 399,648.48, 599,495.76 and 150,332.64 is: 225,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,648.48 : 599,495.76 = 150,332.64 : x
  2. Step 2: Convert to fraction form
    399,648.48/599,495.76 = 150,332.64/x
  3. Step 3: Cross multiply
    399,648.48x = 599,495.76 × 150,332.64
  4. Step 4: Simplify right side
    399,648.48x = 90,123,780,269.61
  5. Step 5: Solve for x
    x = 90,123,780,269.61/399,648.48
  6. Step 6: Final answer
    x = 225,507.63

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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.