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Finding the Fourth Proportional to 251,767.12, 377,650.79 and 83,287.43

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Solution

The fourth proportional to 251,767.12, 377,650.79 and 83,287.43 is: 124,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,767.12 : 377,650.79 = 83,287.43 : x
  2. Step 2: Convert to fraction form
    251,767.12/377,650.79 = 83,287.43/x
  3. Step 3: Cross multiply
    251,767.12x = 377,650.79 × 83,287.43
  4. Step 4: Simplify right side
    251,767.12x = 31,453,564,888.92
  5. Step 5: Solve for x
    x = 31,453,564,888.92/251,767.12
  6. Step 6: Final answer
    x = 124,931.19

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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.