Home / 220,885.28-331,359.16-71,090.72

Finding the Fourth Proportional to 220,885.28, 331,359.16 and 71,090.72

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Solution

The fourth proportional to 220,885.28, 331,359.16 and 71,090.72 is: 106,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,885.28 : 331,359.16 = 71,090.72 : x
  2. Step 2: Convert to fraction form
    220,885.28/331,359.16 = 71,090.72/x
  3. Step 3: Cross multiply
    220,885.28x = 331,359.16 × 71,090.72
  4. Step 4: Simplify right side
    220,885.28x = 23,556,561,263.00
  5. Step 5: Solve for x
    x = 23,556,561,263.00/220,885.28
  6. Step 6: Final answer
    x = 106,646.13

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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.