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Finding the Fourth Proportional to 387,033.52, 580,556.42 and 147,151.08

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Solution

The fourth proportional to 387,033.52, 580,556.42 and 147,151.08 is: 220,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,033.52 : 580,556.42 = 147,151.08 : x
  2. Step 2: Convert to fraction form
    387,033.52/580,556.42 = 147,151.08/x
  3. Step 3: Cross multiply
    387,033.52x = 580,556.42 × 147,151.08
  4. Step 4: Simplify right side
    387,033.52x = 85,429,504,203.93
  5. Step 5: Solve for x
    x = 85,429,504,203.93/387,033.52
  6. Step 6: Final answer
    x = 220,728.95

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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.