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Finding the Fourth Proportional to 218,751.98, 327,870.03 and 98,668.36

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Solution

The fourth proportional to 218,751.98, 327,870.03 and 98,668.36 is: 147,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,751.98 : 327,870.03 = 98,668.36 : x
  2. Step 2: Convert to fraction form
    218,751.98/327,870.03 = 98,668.36/x
  3. Step 3: Cross multiply
    218,751.98x = 327,870.03 × 98,668.36
  4. Step 4: Simplify right side
    218,751.98x = 32,350,398,378.09
  5. Step 5: Solve for x
    x = 32,350,398,378.09/218,751.98
  6. Step 6: Final answer
    x = 147,886.20

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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.