Home / 439,799.20-659,612.40-144,311.20

Finding the Fourth Proportional to 439,799.20, 659,612.40 and 144,311.20

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Solution

The fourth proportional to 439,799.20, 659,612.40 and 144,311.20 is: 216,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,799.20 : 659,612.40 = 144,311.20 : x
  2. Step 2: Convert to fraction form
    439,799.20/659,612.40 = 144,311.20/x
  3. Step 3: Cross multiply
    439,799.20x = 659,612.40 × 144,311.20
  4. Step 4: Simplify right side
    439,799.20x = 95,189,456,978.88
  5. Step 5: Solve for x
    x = 95,189,456,978.88/439,799.20
  6. Step 6: Final answer
    x = 216,438.45

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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.