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Finding the Fourth Proportional to 252,176.88, 378,264.63 and 74,697.72

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Solution

The fourth proportional to 252,176.88, 378,264.63 and 74,697.72 is: 112,046.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,176.88 : 378,264.63 = 74,697.72 : x
  2. Step 2: Convert to fraction form
    252,176.88/378,264.63 = 74,697.72/x
  3. Step 3: Cross multiply
    252,176.88x = 378,264.63 × 74,697.72
  4. Step 4: Simplify right side
    252,176.88x = 28,255,505,417.64
  5. Step 5: Solve for x
    x = 28,255,505,417.64/252,176.88
  6. Step 6: Final answer
    x = 112,046.38

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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.