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Finding the Fourth Proportional to 610.28, 915.54 and 302.12

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Solution

The fourth proportional to 610.28, 915.54 and 302.12 is: 453.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.28 : 915.54 = 302.12 : x
  2. Step 2: Convert to fraction form
    610.28/915.54 = 302.12/x
  3. Step 3: Cross multiply
    610.28x = 915.54 × 302.12
  4. Step 4: Simplify right side
    610.28x = 276,602.94
  5. Step 5: Solve for x
    x = 276,602.94/610.28
  6. Step 6: Final answer
    x = 453.24

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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.