Home / 382,455.20-527,778.96-208,020.92

Finding the Fourth Proportional to 382,455.20, 527,778.96 and 208,020.92

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Solution

The fourth proportional to 382,455.20, 527,778.96 and 208,020.92 is: 287,063.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,455.20 : 527,778.96 = 208,020.92 : x
  2. Step 2: Convert to fraction form
    382,455.20/527,778.96 = 208,020.92/x
  3. Step 3: Cross multiply
    382,455.20x = 527,778.96 × 208,020.92
  4. Step 4: Simplify right side
    382,455.20x = 109,789,064,815.84
  5. Step 5: Solve for x
    x = 109,789,064,815.84/382,455.20
  6. Step 6: Final answer
    x = 287,063.86

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1.5x scale

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.