Home / 493,321.80-739,899.24-138,254.10

Finding the Fourth Proportional to 493,321.80, 739,899.24 and 138,254.10

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Solution

The fourth proportional to 493,321.80, 739,899.24 and 138,254.10 is: 207,357.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,321.80 : 739,899.24 = 138,254.10 : x
  2. Step 2: Convert to fraction form
    493,321.80/739,899.24 = 138,254.10/x
  3. Step 3: Cross multiply
    493,321.80x = 739,899.24 × 138,254.10
  4. Step 4: Simplify right side
    493,321.80x = 102,294,103,516.88
  5. Step 5: Solve for x
    x = 102,294,103,516.88/493,321.80
  6. Step 6: Final answer
    x = 207,357.76

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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.