Home / 218,421.55-327,498.52-85,146.11

Finding the Fourth Proportional to 218,421.55, 327,498.52 and 85,146.11

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Solution

The fourth proportional to 218,421.55, 327,498.52 and 85,146.11 is: 127,667.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,421.55 : 327,498.52 = 85,146.11 : x
  2. Step 2: Convert to fraction form
    218,421.55/327,498.52 = 85,146.11/x
  3. Step 3: Cross multiply
    218,421.55x = 327,498.52 × 85,146.11
  4. Step 4: Simplify right side
    218,421.55x = 27,885,222,945.53
  5. Step 5: Solve for x
    x = 27,885,222,945.53/218,421.55
  6. Step 6: Final answer
    x = 127,667.00

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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.