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Finding the Fourth Proportional to 151,229.57, 226,895.65 and 66,978.41

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Solution

The fourth proportional to 151,229.57, 226,895.65 and 66,978.41 is: 100,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,229.57 : 226,895.65 = 66,978.41 : x
  2. Step 2: Convert to fraction form
    151,229.57/226,895.65 = 66,978.41/x
  3. Step 3: Cross multiply
    151,229.57x = 226,895.65 × 66,978.41
  4. Step 4: Simplify right side
    151,229.57x = 15,197,108,570.99
  5. Step 5: Solve for x
    x = 15,197,108,570.99/151,229.57
  6. Step 6: Final answer
    x = 100,490.33

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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.