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Finding the Fourth Proportional to 169,849.70, 254,774.55 and 51,515.30

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Solution

The fourth proportional to 169,849.70, 254,774.55 and 51,515.30 is: 77,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,849.70 : 254,774.55 = 51,515.30 : x
  2. Step 2: Convert to fraction form
    169,849.70/254,774.55 = 51,515.30/x
  3. Step 3: Cross multiply
    169,849.70x = 254,774.55 × 51,515.30
  4. Step 4: Simplify right side
    169,849.70x = 13,124,787,375.62
  5. Step 5: Solve for x
    x = 13,124,787,375.62/169,849.70
  6. Step 6: Final answer
    x = 77,272.95

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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.