Home / 327,089.10-490,633.65-215,114.70

Finding the Fourth Proportional to 327,089.10, 490,633.65 and 215,114.70

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Solution

The fourth proportional to 327,089.10, 490,633.65 and 215,114.70 is: 322,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,089.10 : 490,633.65 = 215,114.70 : x
  2. Step 2: Convert to fraction form
    327,089.10/490,633.65 = 215,114.70/x
  3. Step 3: Cross multiply
    327,089.10x = 490,633.65 × 215,114.70
  4. Step 4: Simplify right side
    327,089.10x = 105,542,510,429.66
  5. Step 5: Solve for x
    x = 105,542,510,429.66/327,089.10
  6. Step 6: Final answer
    x = 322,672.05

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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.