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Finding the Fourth Proportional to 309,296.20, 427,034.34 and 237,548

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Solution

The fourth proportional to 309,296.20, 427,034.34 and 237,548 is: 327,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,296.20 : 427,034.34 = 237,548 : x
  2. Step 2: Convert to fraction form
    309,296.20/427,034.34 = 237,548/x
  3. Step 3: Cross multiply
    309,296.20x = 427,034.34 × 237,548
  4. Step 4: Simplify right side
    309,296.20x = 101,441,153,398.32
  5. Step 5: Solve for x
    x = 101,441,153,398.32/309,296.20
  6. Step 6: Final answer
    x = 327,974.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.