Home / 215,414.17-323,121.26-57,638.59

Finding the Fourth Proportional to 215,414.17, 323,121.26 and 57,638.59

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Solution

The fourth proportional to 215,414.17, 323,121.26 and 57,638.59 is: 86,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,414.17 : 323,121.26 = 57,638.59 : x
  2. Step 2: Convert to fraction form
    215,414.17/323,121.26 = 57,638.59/x
  3. Step 3: Cross multiply
    215,414.17x = 323,121.26 × 57,638.59
  4. Step 4: Simplify right side
    215,414.17x = 18,624,253,825.42
  5. Step 5: Solve for x
    x = 18,624,253,825.42/215,414.17
  6. Step 6: Final answer
    x = 86,457.89

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1.5x scale

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.