Home / 218,822.80-328,234.20-144,043.60

Finding the Fourth Proportional to 218,822.80, 328,234.20 and 144,043.60

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Solution

The fourth proportional to 218,822.80, 328,234.20 and 144,043.60 is: 216,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,822.80 : 328,234.20 = 144,043.60 : x
  2. Step 2: Convert to fraction form
    218,822.80/328,234.20 = 144,043.60/x
  3. Step 3: Cross multiply
    218,822.80x = 328,234.20 × 144,043.60
  4. Step 4: Simplify right side
    218,822.80x = 47,280,035,811.12
  5. Step 5: Solve for x
    x = 47,280,035,811.12/218,822.80
  6. Step 6: Final answer
    x = 216,065.40

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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.