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Finding the Fourth Proportional to 633.04, 948.28 and 388.88

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Solution

The fourth proportional to 633.04, 948.28 and 388.88 is: 582.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.04 : 948.28 = 388.88 : x
  2. Step 2: Convert to fraction form
    633.04/948.28 = 388.88/x
  3. Step 3: Cross multiply
    633.04x = 948.28 × 388.88
  4. Step 4: Simplify right side
    633.04x = 368,767.13
  5. Step 5: Solve for x
    x = 368,767.13/633.04
  6. Step 6: Final answer
    x = 582.53

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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.