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Finding the Fourth Proportional to 171,015.67, 256,385.22 and 71,250.94

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Solution

The fourth proportional to 171,015.67, 256,385.22 and 71,250.94 is: 106,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,015.67 : 256,385.22 = 71,250.94 : x
  2. Step 2: Convert to fraction form
    171,015.67/256,385.22 = 71,250.94/x
  3. Step 3: Cross multiply
    171,015.67x = 256,385.22 × 71,250.94
  4. Step 4: Simplify right side
    171,015.67x = 18,267,687,927.11
  5. Step 5: Solve for x
    x = 18,267,687,927.11/171,015.67
  6. Step 6: Final answer
    x = 106,818.80

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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.