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Finding the Fourth Proportional to 270,377.91, 405,625.05 and 80,853.30

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Solution

The fourth proportional to 270,377.91, 405,625.05 and 80,853.30 is: 121,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,377.91 : 405,625.05 = 80,853.30 : x
  2. Step 2: Convert to fraction form
    270,377.91/405,625.05 = 80,853.30/x
  3. Step 3: Cross multiply
    270,377.91x = 405,625.05 × 80,853.30
  4. Step 4: Simplify right side
    270,377.91x = 32,796,123,855.17
  5. Step 5: Solve for x
    x = 32,796,123,855.17/270,377.91
  6. Step 6: Final answer
    x = 121,297.35

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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.