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Finding the Fourth Proportional to 632.51, 948.95 and 262.25

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Solution

The fourth proportional to 632.51, 948.95 and 262.25 is: 393.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.51 : 948.95 = 262.25 : x
  2. Step 2: Convert to fraction form
    632.51/948.95 = 262.25/x
  3. Step 3: Cross multiply
    632.51x = 948.95 × 262.25
  4. Step 4: Simplify right side
    632.51x = 248,859.77
  5. Step 5: Solve for x
    x = 248,859.77/632.51
  6. Step 6: Final answer
    x = 393.45

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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.