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Finding the Fourth Proportional to 144,685.20, 217,060.20 and 55,930.80

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Solution

The fourth proportional to 144,685.20, 217,060.20 and 55,930.80 is: 83,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,685.20 : 217,060.20 = 55,930.80 : x
  2. Step 2: Convert to fraction form
    144,685.20/217,060.20 = 55,930.80/x
  3. Step 3: Cross multiply
    144,685.20x = 217,060.20 × 55,930.80
  4. Step 4: Simplify right side
    144,685.20x = 12,140,350,634.16
  5. Step 5: Solve for x
    x = 12,140,350,634.16/144,685.20
  6. Step 6: Final answer
    x = 83,908.72

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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.