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Finding the Fourth Proportional to 387,043.52, 580,601.93 and 150,404.45

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Solution

The fourth proportional to 387,043.52, 580,601.93 and 150,404.45 is: 225,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,043.52 : 580,601.93 = 150,404.45 : x
  2. Step 2: Convert to fraction form
    387,043.52/580,601.93 = 150,404.45/x
  3. Step 3: Cross multiply
    387,043.52x = 580,601.93 × 150,404.45
  4. Step 4: Simplify right side
    387,043.52x = 87,325,110,295.56
  5. Step 5: Solve for x
    x = 87,325,110,295.56/387,043.52
  6. Step 6: Final answer
    x = 225,620.91

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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.