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Finding the Fourth Proportional to 295,753.70, 442,974.45 and 256,387.70

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Solution

The fourth proportional to 295,753.70, 442,974.45 and 256,387.70 is: 384,012.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,753.70 : 442,974.45 = 256,387.70 : x
  2. Step 2: Convert to fraction form
    295,753.70/442,974.45 = 256,387.70/x
  3. Step 3: Cross multiply
    295,753.70x = 442,974.45 × 256,387.70
  4. Step 4: Simplify right side
    295,753.70x = 113,573,200,394.27
  5. Step 5: Solve for x
    x = 113,573,200,394.27/295,753.70
  6. Step 6: Final answer
    x = 384,012.78

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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.