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Finding the Fourth Proportional to 562.60, 844.20 and 254.74

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Solution

The fourth proportional to 562.60, 844.20 and 254.74 is: 382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.60 : 844.20 = 254.74 : x
  2. Step 2: Convert to fraction form
    562.60/844.20 = 254.74/x
  3. Step 3: Cross multiply
    562.60x = 844.20 × 254.74
  4. Step 4: Simplify right side
    562.60x = 215,051.51
  5. Step 5: Solve for x
    x = 215,051.51/562.60
  6. Step 6: Final answer
    x = 382.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.