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Finding the Fourth Proportional to 556.91, 835.26 and 166.90

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Solution

The fourth proportional to 556.91, 835.26 and 166.90 is: 250.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.91 : 835.26 = 166.90 : x
  2. Step 2: Convert to fraction form
    556.91/835.26 = 166.90/x
  3. Step 3: Cross multiply
    556.91x = 835.26 × 166.90
  4. Step 4: Simplify right side
    556.91x = 139,400.72
  5. Step 5: Solve for x
    x = 139,400.72/556.91
  6. Step 6: Final answer
    x = 250.31

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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.