Home / 218,847.40-328,076.70-144,003.40

Finding the Fourth Proportional to 218,847.40, 328,076.70 and 144,003.40

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Solution

The fourth proportional to 218,847.40, 328,076.70 and 144,003.40 is: 215,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,847.40 : 328,076.70 = 144,003.40 : x
  2. Step 2: Convert to fraction form
    218,847.40/328,076.70 = 144,003.40/x
  3. Step 3: Cross multiply
    218,847.40x = 328,076.70 × 144,003.40
  4. Step 4: Simplify right side
    218,847.40x = 47,244,160,260.78
  5. Step 5: Solve for x
    x = 47,244,160,260.78/218,847.40
  6. Step 6: Final answer
    x = 215,877.18

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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.