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Finding the Fourth Proportional to 283,073.58, 424,610.37 and 72,711.72

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Solution

The fourth proportional to 283,073.58, 424,610.37 and 72,711.72 is: 109,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,073.58 : 424,610.37 = 72,711.72 : x
  2. Step 2: Convert to fraction form
    283,073.58/424,610.37 = 72,711.72/x
  3. Step 3: Cross multiply
    283,073.58x = 424,610.37 × 72,711.72
  4. Step 4: Simplify right side
    283,073.58x = 30,874,150,332.54
  5. Step 5: Solve for x
    x = 30,874,150,332.54/283,073.58
  6. Step 6: Final answer
    x = 109,067.58

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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.