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Finding the Fourth Proportional to 615.18, 849.03 and 353.14

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Solution

The fourth proportional to 615.18, 849.03 and 353.14 is: 487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.18 : 849.03 = 353.14 : x
  2. Step 2: Convert to fraction form
    615.18/849.03 = 353.14/x
  3. Step 3: Cross multiply
    615.18x = 849.03 × 353.14
  4. Step 4: Simplify right side
    615.18x = 299,826.45
  5. Step 5: Solve for x
    x = 299,826.45/615.18
  6. Step 6: Final answer
    x = 487.38

Related Problems

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Half scale
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Double scale
Find fourth proportional to 616.18, 850.41 and 354.14
Similar ratio
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1.5x scale

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.