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Finding the Fourth Proportional to 463.36, 637.68 and 431.68

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Solution

The fourth proportional to 463.36, 637.68 and 431.68 is: 594.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.36 : 637.68 = 431.68 : x
  2. Step 2: Convert to fraction form
    463.36/637.68 = 431.68/x
  3. Step 3: Cross multiply
    463.36x = 637.68 × 431.68
  4. Step 4: Simplify right side
    463.36x = 275,273.70
  5. Step 5: Solve for x
    x = 275,273.70/463.36
  6. Step 6: Final answer
    x = 594.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.