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Finding the Fourth Proportional to 206,670.40, 310,034.40 and 88,340.80

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Solution

The fourth proportional to 206,670.40, 310,034.40 and 88,340.80 is: 132,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,670.40 : 310,034.40 = 88,340.80 : x
  2. Step 2: Convert to fraction form
    206,670.40/310,034.40 = 88,340.80/x
  3. Step 3: Cross multiply
    206,670.40x = 310,034.40 × 88,340.80
  4. Step 4: Simplify right side
    206,670.40x = 27,388,686,923.52
  5. Step 5: Solve for x
    x = 27,388,686,923.52/206,670.40
  6. Step 6: Final answer
    x = 132,523.51

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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.