Home / 221,207.20-331,812.04-54,995.20

Finding the Fourth Proportional to 221,207.20, 331,812.04 and 54,995.20

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Solution

The fourth proportional to 221,207.20, 331,812.04 and 54,995.20 is: 82,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,207.20 : 331,812.04 = 54,995.20 : x
  2. Step 2: Convert to fraction form
    221,207.20/331,812.04 = 54,995.20/x
  3. Step 3: Cross multiply
    221,207.20x = 331,812.04 × 54,995.20
  4. Step 4: Simplify right side
    221,207.20x = 18,248,069,502.21
  5. Step 5: Solve for x
    x = 18,248,069,502.21/221,207.20
  6. Step 6: Final answer
    x = 82,493.11

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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.