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Finding the Fourth Proportional to 170,451.31, 255,713.87 and 65,270.28

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Solution

The fourth proportional to 170,451.31, 255,713.87 and 65,270.28 is: 97,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,451.31 : 255,713.87 = 65,270.28 : x
  2. Step 2: Convert to fraction form
    170,451.31/255,713.87 = 65,270.28/x
  3. Step 3: Cross multiply
    170,451.31x = 255,713.87 × 65,270.28
  4. Step 4: Simplify right side
    170,451.31x = 16,690,515,894.78
  5. Step 5: Solve for x
    x = 16,690,515,894.78/170,451.31
  6. Step 6: Final answer
    x = 97,919.55

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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.