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Finding the Fourth Proportional to 251,751.27, 377,496.90 and 74,235.72

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Solution

The fourth proportional to 251,751.27, 377,496.90 and 74,235.72 is: 111,315.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,751.27 : 377,496.90 = 74,235.72 : x
  2. Step 2: Convert to fraction form
    251,751.27/377,496.90 = 74,235.72/x
  3. Step 3: Cross multiply
    251,751.27x = 377,496.90 × 74,235.72
  4. Step 4: Simplify right side
    251,751.27x = 28,023,754,169.27
  5. Step 5: Solve for x
    x = 28,023,754,169.27/251,751.27
  6. Step 6: Final answer
    x = 111,315.24

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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.