Home / 379,177.90-523,269.09-215,826.43

Finding the Fourth Proportional to 379,177.90, 523,269.09 and 215,826.43

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Solution

The fourth proportional to 379,177.90, 523,269.09 and 215,826.43 is: 297,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,177.90 : 523,269.09 = 215,826.43 : x
  2. Step 2: Convert to fraction form
    379,177.90/523,269.09 = 215,826.43/x
  3. Step 3: Cross multiply
    379,177.90x = 523,269.09 × 215,826.43
  4. Step 4: Simplify right side
    379,177.90x = 112,935,299,624.05
  5. Step 5: Solve for x
    x = 112,935,299,624.05/379,177.90
  6. Step 6: Final answer
    x = 297,842.52

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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.