Home / 327,233.36-490,349.08-220,221.40

Finding the Fourth Proportional to 327,233.36, 490,349.08 and 220,221.40

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Solution

The fourth proportional to 327,233.36, 490,349.08 and 220,221.40 is: 329,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,233.36 : 490,349.08 = 220,221.40 : x
  2. Step 2: Convert to fraction form
    327,233.36/490,349.08 = 220,221.40/x
  3. Step 3: Cross multiply
    327,233.36x = 490,349.08 × 220,221.40
  4. Step 4: Simplify right side
    327,233.36x = 107,985,359,109.89
  5. Step 5: Solve for x
    x = 107,985,359,109.89/327,233.36
  6. Step 6: Final answer
    x = 329,994.96

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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.