Home / 221,470.30-331,330.65-192,213.10

Finding the Fourth Proportional to 221,470.30, 331,330.65 and 192,213.10

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Solution

The fourth proportional to 221,470.30, 331,330.65 and 192,213.10 is: 287,560.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,470.30 : 331,330.65 = 192,213.10 : x
  2. Step 2: Convert to fraction form
    221,470.30/331,330.65 = 192,213.10/x
  3. Step 3: Cross multiply
    221,470.30x = 331,330.65 × 192,213.10
  4. Step 4: Simplify right side
    221,470.30x = 63,686,091,361.52
  5. Step 5: Solve for x
    x = 63,686,091,361.52/221,470.30
  6. Step 6: Final answer
    x = 287,560.41

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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.