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Finding the Fourth Proportional to 298.19, 444.62 and 297.78

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Solution

The fourth proportional to 298.19, 444.62 and 297.78 is: 444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.19 : 444.62 = 297.78 : x
  2. Step 2: Convert to fraction form
    298.19/444.62 = 297.78/x
  3. Step 3: Cross multiply
    298.19x = 444.62 × 297.78
  4. Step 4: Simplify right side
    298.19x = 132,397.45
  5. Step 5: Solve for x
    x = 132,397.45/298.19
  6. Step 6: Final answer
    x = 444.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.