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Finding the Fourth Proportional to 463.64, 696.18 and 443.12

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Solution

The fourth proportional to 463.64, 696.18 and 443.12 is: 665.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.64 : 696.18 = 443.12 : x
  2. Step 2: Convert to fraction form
    463.64/696.18 = 443.12/x
  3. Step 3: Cross multiply
    463.64x = 696.18 × 443.12
  4. Step 4: Simplify right side
    463.64x = 308,491.28
  5. Step 5: Solve for x
    x = 308,491.28/463.64
  6. Step 6: Final answer
    x = 665.37

Related Problems

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Double scale
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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.