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Finding the Fourth Proportional to 144,879.20, 217,355.76 and 45,040.24

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Solution

The fourth proportional to 144,879.20, 217,355.76 and 45,040.24 is: 67,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,879.20 : 217,355.76 = 45,040.24 : x
  2. Step 2: Convert to fraction form
    144,879.20/217,355.76 = 45,040.24/x
  3. Step 3: Cross multiply
    144,879.20x = 217,355.76 × 45,040.24
  4. Step 4: Simplify right side
    144,879.20x = 9,789,755,595.78
  5. Step 5: Solve for x
    x = 9,789,755,595.78/144,879.20
  6. Step 6: Final answer
    x = 67,571.85

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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.