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Finding the Fourth Proportional to 423.43, 632.41 and 336.86

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Solution

The fourth proportional to 423.43, 632.41 and 336.86 is: 503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.43 : 632.41 = 336.86 : x
  2. Step 2: Convert to fraction form
    423.43/632.41 = 336.86/x
  3. Step 3: Cross multiply
    423.43x = 632.41 × 336.86
  4. Step 4: Simplify right side
    423.43x = 213,032.00
  5. Step 5: Solve for x
    x = 213,032.00/423.43
  6. Step 6: Final answer
    x = 503.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.