Home / 218,724.40-328,086.60-147,865.60

Finding the Fourth Proportional to 218,724.40, 328,086.60 and 147,865.60

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Solution

The fourth proportional to 218,724.40, 328,086.60 and 147,865.60 is: 221,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,724.40 : 328,086.60 = 147,865.60 : x
  2. Step 2: Convert to fraction form
    218,724.40/328,086.60 = 147,865.60/x
  3. Step 3: Cross multiply
    218,724.40x = 328,086.60 × 147,865.60
  4. Step 4: Simplify right side
    218,724.40x = 48,512,721,960.96
  5. Step 5: Solve for x
    x = 48,512,721,960.96/218,724.40
  6. Step 6: Final answer
    x = 221,798.40

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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.