Home / 397,695.65-596,636.92-131,456.18

Finding the Fourth Proportional to 397,695.65, 596,636.92 and 131,456.18

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Solution

The fourth proportional to 397,695.65, 596,636.92 and 131,456.18 is: 197,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,695.65 : 596,636.92 = 131,456.18 : x
  2. Step 2: Convert to fraction form
    397,695.65/596,636.92 = 131,456.18/x
  3. Step 3: Cross multiply
    397,695.65x = 596,636.92 × 131,456.18
  4. Step 4: Simplify right side
    397,695.65x = 78,431,610,350.17
  5. Step 5: Solve for x
    x = 78,431,610,350.17/397,695.65
  6. Step 6: Final answer
    x = 197,215.16

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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.