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Finding the Fourth Proportional to 631.14, 945.57 and 265.27

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Solution

The fourth proportional to 631.14, 945.57 and 265.27 is: 397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.14 : 945.57 = 265.27 : x
  2. Step 2: Convert to fraction form
    631.14/945.57 = 265.27/x
  3. Step 3: Cross multiply
    631.14x = 945.57 × 265.27
  4. Step 4: Simplify right side
    631.14x = 250,830.03
  5. Step 5: Solve for x
    x = 250,830.03/631.14
  6. Step 6: Final answer
    x = 397.43

Related Problems

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Half scale
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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.