Home / 221,001.60-331,455.84-71,255.04

Finding the Fourth Proportional to 221,001.60, 331,455.84 and 71,255.04

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Solution

The fourth proportional to 221,001.60, 331,455.84 and 71,255.04 is: 106,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,001.60 : 331,455.84 = 71,255.04 : x
  2. Step 2: Convert to fraction form
    221,001.60/331,455.84 = 71,255.04/x
  3. Step 3: Cross multiply
    221,001.60x = 331,455.84 × 71,255.04
  4. Step 4: Simplify right side
    221,001.60x = 23,617,899,137.43
  5. Step 5: Solve for x
    x = 23,617,899,137.43/221,001.60
  6. Step 6: Final answer
    x = 106,867.55

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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.