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Finding the Fourth Proportional to 229,293.60, 341,615.95 and 218,000.78

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Solution

The fourth proportional to 229,293.60, 341,615.95 and 218,000.78 is: 324,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,293.60 : 341,615.95 = 218,000.78 : x
  2. Step 2: Convert to fraction form
    229,293.60/341,615.95 = 218,000.78/x
  3. Step 3: Cross multiply
    229,293.60x = 341,615.95 × 218,000.78
  4. Step 4: Simplify right side
    229,293.60x = 74,472,543,560.44
  5. Step 5: Solve for x
    x = 74,472,543,560.44/229,293.60
  6. Step 6: Final answer
    x = 324,791.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.