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Finding the Fourth Proportional to 602.30, 903.49 and 191.45

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Solution

The fourth proportional to 602.30, 903.49 and 191.45 is: 287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.30 : 903.49 = 191.45 : x
  2. Step 2: Convert to fraction form
    602.30/903.49 = 191.45/x
  3. Step 3: Cross multiply
    602.30x = 903.49 × 191.45
  4. Step 4: Simplify right side
    602.30x = 172,974.94
  5. Step 5: Solve for x
    x = 172,974.94/602.30
  6. Step 6: Final answer
    x = 287.19

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Double scale
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Similar ratio
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1.5x scale

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.