Home / 386,847.11-580,243.23-102,531.35

Finding the Fourth Proportional to 386,847.11, 580,243.23 and 102,531.35

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Solution

The fourth proportional to 386,847.11, 580,243.23 and 102,531.35 is: 153,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,847.11 : 580,243.23 = 102,531.35 : x
  2. Step 2: Convert to fraction form
    386,847.11/580,243.23 = 102,531.35/x
  3. Step 3: Cross multiply
    386,847.11x = 580,243.23 × 102,531.35
  4. Step 4: Simplify right side
    386,847.11x = 59,493,121,700.26
  5. Step 5: Solve for x
    x = 59,493,121,700.26/386,847.11
  6. Step 6: Final answer
    x = 153,789.75

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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.