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Finding the Fourth Proportional to 251,814.38, 377,721.57 and 83,289.43

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Solution

The fourth proportional to 251,814.38, 377,721.57 and 83,289.43 is: 124,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,814.38 : 377,721.57 = 83,289.43 : x
  2. Step 2: Convert to fraction form
    251,814.38/377,721.57 = 83,289.43/x
  3. Step 3: Cross multiply
    251,814.38x = 377,721.57 × 83,289.43
  4. Step 4: Simplify right side
    251,814.38x = 31,460,212,375.40
  5. Step 5: Solve for x
    x = 31,460,212,375.40/251,814.38
  6. Step 6: Final answer
    x = 124,934.14

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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.