Home / 330,526.43-455,958.60-215,872.19

Finding the Fourth Proportional to 330,526.43, 455,958.60 and 215,872.19

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Solution

The fourth proportional to 330,526.43, 455,958.60 and 215,872.19 is: 297,793.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,526.43 : 455,958.60 = 215,872.19 : x
  2. Step 2: Convert to fraction form
    330,526.43/455,958.60 = 215,872.19/x
  3. Step 3: Cross multiply
    330,526.43x = 455,958.60 × 215,872.19
  4. Step 4: Simplify right side
    330,526.43x = 98,428,781,531.33
  5. Step 5: Solve for x
    x = 98,428,781,531.33/330,526.43
  6. Step 6: Final answer
    x = 297,793.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.