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Finding the Fourth Proportional to 251,850.63, 377,685.20 and 83,339.85

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Solution

The fourth proportional to 251,850.63, 377,685.20 and 83,339.85 is: 124,979.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,850.63 : 377,685.20 = 83,339.85 : x
  2. Step 2: Convert to fraction form
    251,850.63/377,685.20 = 83,339.85/x
  3. Step 3: Cross multiply
    251,850.63x = 377,685.20 × 83,339.85
  4. Step 4: Simplify right side
    251,850.63x = 31,476,227,498.52
  5. Step 5: Solve for x
    x = 31,476,227,498.52/251,850.63
  6. Step 6: Final answer
    x = 124,979.74

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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.