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Finding the Fourth Proportional to 218,133.60, 327,200.40 and 216,751.20

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Solution

The fourth proportional to 218,133.60, 327,200.40 and 216,751.20 is: 325,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,133.60 : 327,200.40 = 216,751.20 : x
  2. Step 2: Convert to fraction form
    218,133.60/327,200.40 = 216,751.20/x
  3. Step 3: Cross multiply
    218,133.60x = 327,200.40 × 216,751.20
  4. Step 4: Simplify right side
    218,133.60x = 70,921,079,340.48
  5. Step 5: Solve for x
    x = 70,921,079,340.48/218,133.60
  6. Step 6: Final answer
    x = 325,126.80

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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.