Home / 382,456.20-527,780.34-208,021.92

Finding the Fourth Proportional to 382,456.20, 527,780.34 and 208,021.92

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Solution

The fourth proportional to 382,456.20, 527,780.34 and 208,021.92 is: 287,065.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,456.20 : 527,780.34 = 208,021.92 : x
  2. Step 2: Convert to fraction form
    382,456.20/527,780.34 = 208,021.92/x
  3. Step 3: Cross multiply
    382,456.20x = 527,780.34 × 208,021.92
  4. Step 4: Simplify right side
    382,456.20x = 109,789,879,665.05
  5. Step 5: Solve for x
    x = 109,789,879,665.05/382,456.20
  6. Step 6: Final answer
    x = 287,065.24

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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.