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Finding the Fourth Proportional to 171,184.39, 256,637.46 and 71,418.92

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Solution

The fourth proportional to 171,184.39, 256,637.46 and 71,418.92 is: 107,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,184.39 : 256,637.46 = 71,418.92 : x
  2. Step 2: Convert to fraction form
    171,184.39/256,637.46 = 71,418.92/x
  3. Step 3: Cross multiply
    171,184.39x = 256,637.46 × 71,418.92
  4. Step 4: Simplify right side
    171,184.39x = 18,328,769,209.38
  5. Step 5: Solve for x
    x = 18,328,769,209.38/171,184.39
  6. Step 6: Final answer
    x = 107,070.33

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1.5x scale

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.