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Finding the Fourth Proportional to 556.54, 833.29 and 549.86

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Solution

The fourth proportional to 556.54, 833.29 and 549.86 is: 823.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.54 : 833.29 = 549.86 : x
  2. Step 2: Convert to fraction form
    556.54/833.29 = 549.86/x
  3. Step 3: Cross multiply
    556.54x = 833.29 × 549.86
  4. Step 4: Simplify right side
    556.54x = 458,187.30
  5. Step 5: Solve for x
    x = 458,187.30/556.54
  6. Step 6: Final answer
    x = 823.28

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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.