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Finding the Fourth Proportional to 206,978.65, 310,208.27 and 88,510.68

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Solution

The fourth proportional to 206,978.65, 310,208.27 and 88,510.68 is: 132,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,978.65 : 310,208.27 = 88,510.68 : x
  2. Step 2: Convert to fraction form
    206,978.65/310,208.27 = 88,510.68/x
  3. Step 3: Cross multiply
    206,978.65x = 310,208.27 × 88,510.68
  4. Step 4: Simplify right side
    206,978.65x = 27,456,744,476.77
  5. Step 5: Solve for x
    x = 27,456,744,476.77/206,978.65
  6. Step 6: Final answer
    x = 132,654.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.