Home / 280,982.20-421,703.70-271,766.20

Finding the Fourth Proportional to 280,982.20, 421,703.70 and 271,766.20

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Solution

The fourth proportional to 280,982.20, 421,703.70 and 271,766.20 is: 407,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,982.20 : 421,703.70 = 271,766.20 : x
  2. Step 2: Convert to fraction form
    280,982.20/421,703.70 = 271,766.20/x
  3. Step 3: Cross multiply
    280,982.20x = 421,703.70 × 271,766.20
  4. Step 4: Simplify right side
    280,982.20x = 114,604,812,074.94
  5. Step 5: Solve for x
    x = 114,604,812,074.94/280,982.20
  6. Step 6: Final answer
    x = 407,872.14

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1.5x scale

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.