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Finding the Fourth Proportional to 354.65, 531.50 and 181.04

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Solution

The fourth proportional to 354.65, 531.50 and 181.04 is: 271.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.65 : 531.50 = 181.04 : x
  2. Step 2: Convert to fraction form
    354.65/531.50 = 181.04/x
  3. Step 3: Cross multiply
    354.65x = 531.50 × 181.04
  4. Step 4: Simplify right side
    354.65x = 96,219.20
  5. Step 5: Solve for x
    x = 96,219.20/354.65
  6. Step 6: Final answer
    x = 271.31

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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.