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Finding the Fourth Proportional to 227,042.69, 340,560.36 and 77,387.18

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Solution

The fourth proportional to 227,042.69, 340,560.36 and 77,387.18 is: 116,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,042.69 : 340,560.36 = 77,387.18 : x
  2. Step 2: Convert to fraction form
    227,042.69/340,560.36 = 77,387.18/x
  3. Step 3: Cross multiply
    227,042.69x = 340,560.36 × 77,387.18
  4. Step 4: Simplify right side
    227,042.69x = 26,355,004,177.38
  5. Step 5: Solve for x
    x = 26,355,004,177.38/227,042.69
  6. Step 6: Final answer
    x = 116,079.51

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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.