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Finding the Fourth Proportional to 335.53, 500.18 and 317.29

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Solution

The fourth proportional to 335.53, 500.18 and 317.29 is: 472.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.53 : 500.18 = 317.29 : x
  2. Step 2: Convert to fraction form
    335.53/500.18 = 317.29/x
  3. Step 3: Cross multiply
    335.53x = 500.18 × 317.29
  4. Step 4: Simplify right side
    335.53x = 158,702.11
  5. Step 5: Solve for x
    x = 158,702.11/335.53
  6. Step 6: Final answer
    x = 472.99

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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.