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Finding the Fourth Proportional to 406.22, 560.59 and 250.88

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Solution

The fourth proportional to 406.22, 560.59 and 250.88 is: 346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.22 : 560.59 = 250.88 : x
  2. Step 2: Convert to fraction form
    406.22/560.59 = 250.88/x
  3. Step 3: Cross multiply
    406.22x = 560.59 × 250.88
  4. Step 4: Simplify right side
    406.22x = 140,637.39
  5. Step 5: Solve for x
    x = 140,637.39/406.22
  6. Step 6: Final answer
    x = 346.21

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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.