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Finding the Fourth Proportional to 334.53, 498.69 and 316.29

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Solution

The fourth proportional to 334.53, 498.69 and 316.29 is: 471.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.53 : 498.69 = 316.29 : x
  2. Step 2: Convert to fraction form
    334.53/498.69 = 316.29/x
  3. Step 3: Cross multiply
    334.53x = 498.69 × 316.29
  4. Step 4: Simplify right side
    334.53x = 157,730.66
  5. Step 5: Solve for x
    x = 157,730.66/334.53
  6. Step 6: Final answer
    x = 471.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.