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Finding the Fourth Proportional to 630.13, 945.19 and 265.17

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Solution

The fourth proportional to 630.13, 945.19 and 265.17 is: 397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.13 : 945.19 = 265.17 : x
  2. Step 2: Convert to fraction form
    630.13/945.19 = 265.17/x
  3. Step 3: Cross multiply
    630.13x = 945.19 × 265.17
  4. Step 4: Simplify right side
    630.13x = 250,640.65
  5. Step 5: Solve for x
    x = 250,640.65/630.13
  6. Step 6: Final answer
    x = 397.76

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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.