Home / 386,442.20-579,663.30-102,132.20

Finding the Fourth Proportional to 386,442.20, 579,663.30 and 102,132.20

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Solution

The fourth proportional to 386,442.20, 579,663.30 and 102,132.20 is: 153,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,442.20 : 579,663.30 = 102,132.20 : x
  2. Step 2: Convert to fraction form
    386,442.20/579,663.30 = 102,132.20/x
  3. Step 3: Cross multiply
    386,442.20x = 579,663.30 × 102,132.20
  4. Step 4: Simplify right side
    386,442.20x = 59,202,288,088.26
  5. Step 5: Solve for x
    x = 59,202,288,088.26/386,442.20
  6. Step 6: Final answer
    x = 153,198.30

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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.