Home / 261,719.88-361,164.33-159,915.75

Finding the Fourth Proportional to 261,719.88, 361,164.33 and 159,915.75

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Solution

The fourth proportional to 261,719.88, 361,164.33 and 159,915.75 is: 220,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,719.88 : 361,164.33 = 159,915.75 : x
  2. Step 2: Convert to fraction form
    261,719.88/361,164.33 = 159,915.75/x
  3. Step 3: Cross multiply
    261,719.88x = 361,164.33 × 159,915.75
  4. Step 4: Simplify right side
    261,719.88x = 57,755,864,705.20
  5. Step 5: Solve for x
    x = 57,755,864,705.20/261,719.88
  6. Step 6: Final answer
    x = 220,678.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.