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Finding the Fourth Proportional to 602.03, 830.49 and 353.19

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Solution

The fourth proportional to 602.03, 830.49 and 353.19 is: 487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.03 : 830.49 = 353.19 : x
  2. Step 2: Convert to fraction form
    602.03/830.49 = 353.19/x
  3. Step 3: Cross multiply
    602.03x = 830.49 × 353.19
  4. Step 4: Simplify right side
    602.03x = 293,320.76
  5. Step 5: Solve for x
    x = 293,320.76/602.03
  6. Step 6: Final answer
    x = 487.22

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.