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Finding the Fourth Proportional to 283,391.38, 424,620.51 and 198,010.90

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Solution

The fourth proportional to 283,391.38, 424,620.51 and 198,010.90 is: 296,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,391.38 : 424,620.51 = 198,010.90 : x
  2. Step 2: Convert to fraction form
    283,391.38/424,620.51 = 198,010.90/x
  3. Step 3: Cross multiply
    283,391.38x = 424,620.51 × 198,010.90
  4. Step 4: Simplify right side
    283,391.38x = 84,079,489,343.56
  5. Step 5: Solve for x
    x = 84,079,489,343.56/283,391.38
  6. Step 6: Final answer
    x = 296,690.36

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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.