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Finding the Fourth Proportional to 530.44, 731.53 and 353.41

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Solution

The fourth proportional to 530.44, 731.53 and 353.41 is: 487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.44 : 731.53 = 353.41 : x
  2. Step 2: Convert to fraction form
    530.44/731.53 = 353.41/x
  3. Step 3: Cross multiply
    530.44x = 731.53 × 353.41
  4. Step 4: Simplify right side
    530.44x = 258,530.02
  5. Step 5: Solve for x
    x = 258,530.02/530.44
  6. Step 6: Final answer
    x = 487.39

Related Problems

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.