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Finding the Fourth Proportional to 444.78, 613.89 and 297.66

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Solution

The fourth proportional to 444.78, 613.89 and 297.66 is: 410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.78 : 613.89 = 297.66 : x
  2. Step 2: Convert to fraction form
    444.78/613.89 = 297.66/x
  3. Step 3: Cross multiply
    444.78x = 613.89 × 297.66
  4. Step 4: Simplify right side
    444.78x = 182,730.50
  5. Step 5: Solve for x
    x = 182,730.50/444.78
  6. Step 6: Final answer
    x = 410.83

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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.