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Finding the Fourth Proportional to 144,381.69, 216,543.38 and 39,201.57

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Solution

The fourth proportional to 144,381.69, 216,543.38 and 39,201.57 is: 58,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,381.69 : 216,543.38 = 39,201.57 : x
  2. Step 2: Convert to fraction form
    144,381.69/216,543.38 = 39,201.57/x
  3. Step 3: Cross multiply
    144,381.69x = 216,543.38 × 39,201.57
  4. Step 4: Simplify right side
    144,381.69x = 8,488,840,273.10
  5. Step 5: Solve for x
    x = 8,488,840,273.10/144,381.69
  6. Step 6: Final answer
    x = 58,794.44

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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.