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Finding the Fourth Proportional to 615.19, 849.03 and 353.23

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Solution

The fourth proportional to 615.19, 849.03 and 353.23 is: 487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.19 : 849.03 = 353.23 : x
  2. Step 2: Convert to fraction form
    615.19/849.03 = 353.23/x
  3. Step 3: Cross multiply
    615.19x = 849.03 × 353.23
  4. Step 4: Simplify right side
    615.19x = 299,902.87
  5. Step 5: Solve for x
    x = 299,902.87/615.19
  6. Step 6: Final answer
    x = 487.50

Related Problems

Find fourth proportional to 307.60, 424.52 and 176.62
Half scale
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Double scale
Find fourth proportional to 616.19, 850.41 and 354.23
Similar ratio
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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.