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Finding the Fourth Proportional to 558.44, 833.38 and 551.60

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Solution

The fourth proportional to 558.44, 833.38 and 551.60 is: 823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.44 : 833.38 = 551.60 : x
  2. Step 2: Convert to fraction form
    558.44/833.38 = 551.60/x
  3. Step 3: Cross multiply
    558.44x = 833.38 × 551.60
  4. Step 4: Simplify right side
    558.44x = 459,692.41
  5. Step 5: Solve for x
    x = 459,692.41/558.44
  6. Step 6: Final answer
    x = 823.17

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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.