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Finding the Fourth Proportional to 251,788.68, 377,741.68 and 83,302.20

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Solution

The fourth proportional to 251,788.68, 377,741.68 and 83,302.20 is: 124,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,788.68 : 377,741.68 = 83,302.20 : x
  2. Step 2: Convert to fraction form
    251,788.68/377,741.68 = 83,302.20/x
  3. Step 3: Cross multiply
    251,788.68x = 377,741.68 × 83,302.20
  4. Step 4: Simplify right side
    251,788.68x = 31,466,712,975.70
  5. Step 5: Solve for x
    x = 31,466,712,975.70/251,788.68
  6. Step 6: Final answer
    x = 124,972.71

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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.