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Finding the Fourth Proportional to 387,469.30, 580,966.22 and 150,535.39

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Solution

The fourth proportional to 387,469.30, 580,966.22 and 150,535.39 is: 225,710.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,469.30 : 580,966.22 = 150,535.39 : x
  2. Step 2: Convert to fraction form
    387,469.30/580,966.22 = 150,535.39/x
  3. Step 3: Cross multiply
    387,469.30x = 580,966.22 × 150,535.39
  4. Step 4: Simplify right side
    387,469.30x = 87,455,975,751.85
  5. Step 5: Solve for x
    x = 87,455,975,751.85/387,469.30
  6. Step 6: Final answer
    x = 225,710.72

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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.