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Finding the Fourth Proportional to 602.49, 903.05 and 255.32

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Solution

The fourth proportional to 602.49, 903.05 and 255.32 is: 382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.49 : 903.05 = 255.32 : x
  2. Step 2: Convert to fraction form
    602.49/903.05 = 255.32/x
  3. Step 3: Cross multiply
    602.49x = 903.05 × 255.32
  4. Step 4: Simplify right side
    602.49x = 230,560.93
  5. Step 5: Solve for x
    x = 230,560.93/602.49
  6. Step 6: Final answer
    x = 382.68

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Half scale
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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.