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Finding the Fourth Proportional to 144,986.60, 217,479.48 and 39,805.66

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Solution

The fourth proportional to 144,986.60, 217,479.48 and 39,805.66 is: 59,708.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,986.60 : 217,479.48 = 39,805.66 : x
  2. Step 2: Convert to fraction form
    144,986.60/217,479.48 = 39,805.66/x
  3. Step 3: Cross multiply
    144,986.60x = 217,479.48 × 39,805.66
  4. Step 4: Simplify right side
    144,986.60x = 8,656,914,237.86
  5. Step 5: Solve for x
    x = 8,656,914,237.86/144,986.60
  6. Step 6: Final answer
    x = 59,708.37

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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.