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Finding the Fourth Proportional to 198,888.22, 298,302.72 and 65,769.18

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Solution

The fourth proportional to 198,888.22, 298,302.72 and 65,769.18 is: 98,643.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,888.22 : 298,302.72 = 65,769.18 : x
  2. Step 2: Convert to fraction form
    198,888.22/298,302.72 = 65,769.18/x
  3. Step 3: Cross multiply
    198,888.22x = 298,302.72 × 65,769.18
  4. Step 4: Simplify right side
    198,888.22x = 19,619,125,286.17
  5. Step 5: Solve for x
    x = 19,619,125,286.17/198,888.22
  6. Step 6: Final answer
    x = 98,643.98

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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.