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Finding the Fourth Proportional to 251,164.80, 376,747.20 and 124,829.10

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Solution

The fourth proportional to 251,164.80, 376,747.20 and 124,829.10 is: 187,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,164.80 : 376,747.20 = 124,829.10 : x
  2. Step 2: Convert to fraction form
    251,164.80/376,747.20 = 124,829.10/x
  3. Step 3: Cross multiply
    251,164.80x = 376,747.20 × 124,829.10
  4. Step 4: Simplify right side
    251,164.80x = 47,029,013,903.52
  5. Step 5: Solve for x
    x = 47,029,013,903.52/251,164.80
  6. Step 6: Final answer
    x = 187,243.65

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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.