Home / 221,471.30-331,332.15-192,214.10

Finding the Fourth Proportional to 221,471.30, 331,332.15 and 192,214.10

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Solution

The fourth proportional to 221,471.30, 331,332.15 and 192,214.10 is: 287,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,471.30 : 331,332.15 = 192,214.10 : x
  2. Step 2: Convert to fraction form
    221,471.30/331,332.15 = 192,214.10/x
  3. Step 3: Cross multiply
    221,471.30x = 331,332.15 × 192,214.10
  4. Step 4: Simplify right side
    221,471.30x = 63,686,711,013.32
  5. Step 5: Solve for x
    x = 63,686,711,013.32/221,471.30
  6. Step 6: Final answer
    x = 287,561.91

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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.