Home / 261,134.21-391,876.28-167,705.57

Finding the Fourth Proportional to 261,134.21, 391,876.28 and 167,705.57

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Solution

The fourth proportional to 261,134.21, 391,876.28 and 167,705.57 is: 251,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,134.21 : 391,876.28 = 167,705.57 : x
  2. Step 2: Convert to fraction form
    261,134.21/391,876.28 = 167,705.57/x
  3. Step 3: Cross multiply
    261,134.21x = 391,876.28 × 167,705.57
  4. Step 4: Simplify right side
    261,134.21x = 65,719,834,906.88
  5. Step 5: Solve for x
    x = 65,719,834,906.88/261,134.21
  6. Step 6: Final answer
    x = 251,670.72

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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.