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Finding the Fourth Proportional to 283,752.38, 391,566.15 and 154,687.79

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Solution

The fourth proportional to 283,752.38, 391,566.15 and 154,687.79 is: 213,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,752.38 : 391,566.15 = 154,687.79 : x
  2. Step 2: Convert to fraction form
    283,752.38/391,566.15 = 154,687.79/x
  3. Step 3: Cross multiply
    283,752.38x = 391,566.15 × 154,687.79
  4. Step 4: Simplify right side
    283,752.38x = 60,570,503,361.22
  5. Step 5: Solve for x
    x = 60,570,503,361.22/283,752.38
  6. Step 6: Final answer
    x = 213,462.54

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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.