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Finding the Fourth Proportional to 251,767.11, 377,650.79 and 83,287.44

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Solution

The fourth proportional to 251,767.11, 377,650.79 and 83,287.44 is: 124,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,767.11 : 377,650.79 = 83,287.44 : x
  2. Step 2: Convert to fraction form
    251,767.11/377,650.79 = 83,287.44/x
  3. Step 3: Cross multiply
    251,767.11x = 377,650.79 × 83,287.44
  4. Step 4: Simplify right side
    251,767.11x = 31,453,567,408.97
  5. Step 5: Solve for x
    x = 31,453,567,408.97/251,767.11
  6. Step 6: Final answer
    x = 124,931.20

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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.