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Finding the Fourth Proportional to 460.69, 635.14 and 381.71

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Solution

The fourth proportional to 460.69, 635.14 and 381.71 is: 526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.69 : 635.14 = 381.71 : x
  2. Step 2: Convert to fraction form
    460.69/635.14 = 381.71/x
  3. Step 3: Cross multiply
    460.69x = 635.14 × 381.71
  4. Step 4: Simplify right side
    460.69x = 242,439.29
  5. Step 5: Solve for x
    x = 242,439.29/460.69
  6. Step 6: Final answer
    x = 526.25

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Double scale
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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.