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Finding the Fourth Proportional to 251,173.48, 376,618.38 and 82,648.36

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Solution

The fourth proportional to 251,173.48, 376,618.38 and 82,648.36 is: 123,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,173.48 : 376,618.38 = 82,648.36 : x
  2. Step 2: Convert to fraction form
    251,173.48/376,618.38 = 82,648.36/x
  3. Step 3: Cross multiply
    251,173.48x = 376,618.38 × 82,648.36
  4. Step 4: Simplify right side
    251,173.48x = 31,126,891,452.86
  5. Step 5: Solve for x
    x = 31,126,891,452.86/251,173.48
  6. Step 6: Final answer
    x = 123,925.87

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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.