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Finding the Fourth Proportional to 274,281.80, 411,422.70 and 230,979.20

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Solution

The fourth proportional to 274,281.80, 411,422.70 and 230,979.20 is: 346,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,281.80 : 411,422.70 = 230,979.20 : x
  2. Step 2: Convert to fraction form
    274,281.80/411,422.70 = 230,979.20/x
  3. Step 3: Cross multiply
    274,281.80x = 411,422.70 × 230,979.20
  4. Step 4: Simplify right side
    274,281.80x = 95,030,086,107.84
  5. Step 5: Solve for x
    x = 95,030,086,107.84/274,281.80
  6. Step 6: Final answer
    x = 346,468.80

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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.