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Finding the Fourth Proportional to 444.13, 611.56 and 418.15

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Solution

The fourth proportional to 444.13, 611.56 and 418.15 is: 575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.13 : 611.56 = 418.15 : x
  2. Step 2: Convert to fraction form
    444.13/611.56 = 418.15/x
  3. Step 3: Cross multiply
    444.13x = 611.56 × 418.15
  4. Step 4: Simplify right side
    444.13x = 255,725.10
  5. Step 5: Solve for x
    x = 255,725.10/444.13
  6. Step 6: Final answer
    x = 575.79

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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.