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Finding the Fourth Proportional to 620.08, 929.87 and 181.18

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Solution

The fourth proportional to 620.08, 929.87 and 181.18 is: 271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.08 : 929.87 = 181.18 : x
  2. Step 2: Convert to fraction form
    620.08/929.87 = 181.18/x
  3. Step 3: Cross multiply
    620.08x = 929.87 × 181.18
  4. Step 4: Simplify right side
    620.08x = 168,474.78
  5. Step 5: Solve for x
    x = 168,474.78/620.08
  6. Step 6: Final answer
    x = 271.70

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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.