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Finding the Fourth Proportional to 631.51, 945.66 and 495.27

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Solution

The fourth proportional to 631.51, 945.66 and 495.27 is: 741.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.51 : 945.66 = 495.27 : x
  2. Step 2: Convert to fraction form
    631.51/945.66 = 495.27/x
  3. Step 3: Cross multiply
    631.51x = 945.66 × 495.27
  4. Step 4: Simplify right side
    631.51x = 468,357.03
  5. Step 5: Solve for x
    x = 468,357.03/631.51
  6. Step 6: Final answer
    x = 741.65

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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.