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Finding the Fourth Proportional to 444.72, 613.86 and 270

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Solution

The fourth proportional to 444.72, 613.86 and 270 is: 372.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.72 : 613.86 = 270 : x
  2. Step 2: Convert to fraction form
    444.72/613.86 = 270/x
  3. Step 3: Cross multiply
    444.72x = 613.86 × 270
  4. Step 4: Simplify right side
    444.72x = 165,742.20
  5. Step 5: Solve for x
    x = 165,742.20/444.72
  6. Step 6: Final answer
    x = 372.69

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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.