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Finding the Fourth Proportional to 218,073.44, 301,478.04 and 216,077.60

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Solution

The fourth proportional to 218,073.44, 301,478.04 and 216,077.60 is: 298,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,073.44 : 301,478.04 = 216,077.60 : x
  2. Step 2: Convert to fraction form
    218,073.44/301,478.04 = 216,077.60/x
  3. Step 3: Cross multiply
    218,073.44x = 301,478.04 × 216,077.60
  4. Step 4: Simplify right side
    218,073.44x = 65,142,651,335.90
  5. Step 5: Solve for x
    x = 65,142,651,335.90/218,073.44
  6. Step 6: Final answer
    x = 298,718.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.