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Finding the Fourth Proportional to 557.82, 836.91 and 173.07

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Solution

The fourth proportional to 557.82, 836.91 and 173.07 is: 259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.82 : 836.91 = 173.07 : x
  2. Step 2: Convert to fraction form
    557.82/836.91 = 173.07/x
  3. Step 3: Cross multiply
    557.82x = 836.91 × 173.07
  4. Step 4: Simplify right side
    557.82x = 144,844.01
  5. Step 5: Solve for x
    x = 144,844.01/557.82
  6. Step 6: Final answer
    x = 259.66

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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.