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Finding the Fourth Proportional to 299,117.20, 448,521.90 and 88,727.80

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Solution

The fourth proportional to 299,117.20, 448,521.90 and 88,727.80 is: 133,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,117.20 : 448,521.90 = 88,727.80 : x
  2. Step 2: Convert to fraction form
    299,117.20/448,521.90 = 88,727.80/x
  3. Step 3: Cross multiply
    299,117.20x = 448,521.90 × 88,727.80
  4. Step 4: Simplify right side
    299,117.20x = 39,796,361,438.82
  5. Step 5: Solve for x
    x = 39,796,361,438.82/299,117.20
  6. Step 6: Final answer
    x = 133,046.05

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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.