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Finding the Fourth Proportional to 632.21, 948.38 and 358.83

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Solution

The fourth proportional to 632.21, 948.38 and 358.83 is: 538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.21 : 948.38 = 358.83 : x
  2. Step 2: Convert to fraction form
    632.21/948.38 = 358.83/x
  3. Step 3: Cross multiply
    632.21x = 948.38 × 358.83
  4. Step 4: Simplify right side
    632.21x = 340,305.40
  5. Step 5: Solve for x
    x = 340,305.40/632.21
  6. Step 6: Final answer
    x = 538.28

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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.