Home / 221,439.20-332,211.47-71,679.51

Finding the Fourth Proportional to 221,439.20, 332,211.47 and 71,679.51

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Solution

The fourth proportional to 221,439.20, 332,211.47 and 71,679.51 is: 107,536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,439.20 : 332,211.47 = 71,679.51 : x
  2. Step 2: Convert to fraction form
    221,439.20/332,211.47 = 71,679.51/x
  3. Step 3: Cross multiply
    221,439.20x = 332,211.47 × 71,679.51
  4. Step 4: Simplify right side
    221,439.20x = 23,812,755,027.58
  5. Step 5: Solve for x
    x = 23,812,755,027.58/221,439.20
  6. Step 6: Final answer
    x = 107,536.32

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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.