Home / 280,820.24-421,604.04-147,793.92

Finding the Fourth Proportional to 280,820.24, 421,604.04 and 147,793.92

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Solution

The fourth proportional to 280,820.24, 421,604.04 and 147,793.92 is: 221,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,820.24 : 421,604.04 = 147,793.92 : x
  2. Step 2: Convert to fraction form
    280,820.24/421,604.04 = 147,793.92/x
  3. Step 3: Cross multiply
    280,820.24x = 421,604.04 × 147,793.92
  4. Step 4: Simplify right side
    280,820.24x = 62,310,513,759.44
  5. Step 5: Solve for x
    x = 62,310,513,759.44/280,820.24
  6. Step 6: Final answer
    x = 221,887.55

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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.