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Finding the Fourth Proportional to 419,760.86, 629,444.40 and 153,335.04

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Solution

The fourth proportional to 419,760.86, 629,444.40 and 153,335.04 is: 229,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,760.86 : 629,444.40 = 153,335.04 : x
  2. Step 2: Convert to fraction form
    419,760.86/629,444.40 = 153,335.04/x
  3. Step 3: Cross multiply
    419,760.86x = 629,444.40 × 153,335.04
  4. Step 4: Simplify right side
    419,760.86x = 96,515,882,251.78
  5. Step 5: Solve for x
    x = 96,515,882,251.78/419,760.86
  6. Step 6: Final answer
    x = 229,930.64

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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.