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Finding the Fourth Proportional to 373.10, 559.64 and 156.65

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Solution

The fourth proportional to 373.10, 559.64 and 156.65 is: 234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.10 : 559.64 = 156.65 : x
  2. Step 2: Convert to fraction form
    373.10/559.64 = 156.65/x
  3. Step 3: Cross multiply
    373.10x = 559.64 × 156.65
  4. Step 4: Simplify right side
    373.10x = 87,665.20
  5. Step 5: Solve for x
    x = 87,665.20/373.10
  6. Step 6: Final answer
    x = 234.97

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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.