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Finding the Fourth Proportional to 332.03, 495.59 and 311.51

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Solution

The fourth proportional to 332.03, 495.59 and 311.51 is: 464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.03 : 495.59 = 311.51 : x
  2. Step 2: Convert to fraction form
    332.03/495.59 = 311.51/x
  3. Step 3: Cross multiply
    332.03x = 495.59 × 311.51
  4. Step 4: Simplify right side
    332.03x = 154,377.21
  5. Step 5: Solve for x
    x = 154,377.21/332.03
  6. Step 6: Final answer
    x = 464.96

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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.