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Finding the Fourth Proportional to 252,285.66, 378,429.96 and 74,794.20

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Solution

The fourth proportional to 252,285.66, 378,429.96 and 74,794.20 is: 112,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,285.66 : 378,429.96 = 74,794.20 : x
  2. Step 2: Convert to fraction form
    252,285.66/378,429.96 = 74,794.20/x
  3. Step 3: Cross multiply
    252,285.66x = 378,429.96 × 74,794.20
  4. Step 4: Simplify right side
    252,285.66x = 28,304,366,114.23
  5. Step 5: Solve for x
    x = 28,304,366,114.23/252,285.66
  6. Step 6: Final answer
    x = 112,191.74

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1.5x scale

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.