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Finding the Fourth Proportional to 292,238.70, 438,358.05 and 150,521.10

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Solution

The fourth proportional to 292,238.70, 438,358.05 and 150,521.10 is: 225,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,238.70 : 438,358.05 = 150,521.10 : x
  2. Step 2: Convert to fraction form
    292,238.70/438,358.05 = 150,521.10/x
  3. Step 3: Cross multiply
    292,238.70x = 438,358.05 × 150,521.10
  4. Step 4: Simplify right side
    292,238.70x = 65,982,135,879.86
  5. Step 5: Solve for x
    x = 65,982,135,879.86/292,238.70
  6. Step 6: Final answer
    x = 225,781.65

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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.