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Finding the Fourth Proportional to 556.45, 834.48 and 166.35

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Solution

The fourth proportional to 556.45, 834.48 and 166.35 is: 249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.45 : 834.48 = 166.35 : x
  2. Step 2: Convert to fraction form
    556.45/834.48 = 166.35/x
  3. Step 3: Cross multiply
    556.45x = 834.48 × 166.35
  4. Step 4: Simplify right side
    556.45x = 138,815.75
  5. Step 5: Solve for x
    x = 138,815.75/556.45
  6. Step 6: Final answer
    x = 249.47

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Similar ratio
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1.5x scale

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.