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Finding the Fourth Proportional to 602.80, 903.50 and 329.02

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Solution

The fourth proportional to 602.80, 903.50 and 329.02 is: 493.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.80 : 903.50 = 329.02 : x
  2. Step 2: Convert to fraction form
    602.80/903.50 = 329.02/x
  3. Step 3: Cross multiply
    602.80x = 903.50 × 329.02
  4. Step 4: Simplify right side
    602.80x = 297,269.57
  5. Step 5: Solve for x
    x = 297,269.57/602.80
  6. Step 6: Final answer
    x = 493.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.