Home / 261,961.29-392,662.18-149,399.13

Finding the Fourth Proportional to 261,961.29, 392,662.18 and 149,399.13

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Solution

The fourth proportional to 261,961.29, 392,662.18 and 149,399.13 is: 223,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,961.29 : 392,662.18 = 149,399.13 : x
  2. Step 2: Convert to fraction form
    261,961.29/392,662.18 = 149,399.13/x
  3. Step 3: Cross multiply
    261,961.29x = 392,662.18 × 149,399.13
  4. Step 4: Simplify right side
    261,961.29x = 58,663,389,735.14
  5. Step 5: Solve for x
    x = 58,663,389,735.14/261,961.29
  6. Step 6: Final answer
    x = 223,939.15

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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.