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Finding the Fourth Proportional to 463.71, 695.06 and 189.73

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Solution

The fourth proportional to 463.71, 695.06 and 189.73 is: 284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.71 : 695.06 = 189.73 : x
  2. Step 2: Convert to fraction form
    463.71/695.06 = 189.73/x
  3. Step 3: Cross multiply
    463.71x = 695.06 × 189.73
  4. Step 4: Simplify right side
    463.71x = 131,873.73
  5. Step 5: Solve for x
    x = 131,873.73/463.71
  6. Step 6: Final answer
    x = 284.39

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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.