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Finding the Fourth Proportional to 333.02, 502.05 and 328.91

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Solution

The fourth proportional to 333.02, 502.05 and 328.91 is: 495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.02 : 502.05 = 328.91 : x
  2. Step 2: Convert to fraction form
    333.02/502.05 = 328.91/x
  3. Step 3: Cross multiply
    333.02x = 502.05 × 328.91
  4. Step 4: Simplify right side
    333.02x = 165,129.27
  5. Step 5: Solve for x
    x = 165,129.27/333.02
  6. Step 6: Final answer
    x = 495.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.