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Finding the Fourth Proportional to 375,524.43, 518,223.05 and 203,446.73

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Solution

The fourth proportional to 375,524.43, 518,223.05 and 203,446.73 is: 280,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,524.43 : 518,223.05 = 203,446.73 : x
  2. Step 2: Convert to fraction form
    375,524.43/518,223.05 = 203,446.73/x
  3. Step 3: Cross multiply
    375,524.43x = 518,223.05 × 203,446.73
  4. Step 4: Simplify right side
    375,524.43x = 105,430,785,974.38
  5. Step 5: Solve for x
    x = 105,430,785,974.38/375,524.43
  6. Step 6: Final answer
    x = 280,756.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.