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Finding the Fourth Proportional to 316.68, 437.05 and 183.95

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Solution

The fourth proportional to 316.68, 437.05 and 183.95 is: 253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.68 : 437.05 = 183.95 : x
  2. Step 2: Convert to fraction form
    316.68/437.05 = 183.95/x
  3. Step 3: Cross multiply
    316.68x = 437.05 × 183.95
  4. Step 4: Simplify right side
    316.68x = 80,395.35
  5. Step 5: Solve for x
    x = 80,395.35/316.68
  6. Step 6: Final answer
    x = 253.87

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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.