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Finding the Fourth Proportional to 381,977.99, 527,098.77 and 220,843.42

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Solution

The fourth proportional to 381,977.99, 527,098.77 and 220,843.42 is: 304,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,977.99 : 527,098.77 = 220,843.42 : x
  2. Step 2: Convert to fraction form
    381,977.99/527,098.77 = 220,843.42/x
  3. Step 3: Cross multiply
    381,977.99x = 527,098.77 × 220,843.42
  4. Step 4: Simplify right side
    381,977.99x = 116,406,295,044.59
  5. Step 5: Solve for x
    x = 116,406,295,044.59/381,977.99
  6. Step 6: Final answer
    x = 304,746.08

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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.