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Finding the Fourth Proportional to 316.72, 437.07 and 176.83

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Solution

The fourth proportional to 316.72, 437.07 and 176.83 is: 244.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.72 : 437.07 = 176.83 : x
  2. Step 2: Convert to fraction form
    316.72/437.07 = 176.83/x
  3. Step 3: Cross multiply
    316.72x = 437.07 × 176.83
  4. Step 4: Simplify right side
    316.72x = 77,287.09
  5. Step 5: Solve for x
    x = 77,287.09/316.72
  6. Step 6: Final answer
    x = 244.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.