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Finding the Fourth Proportional to 695.81, 959.23 and 474.48

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Solution

The fourth proportional to 695.81, 959.23 and 474.48 is: 654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.81 : 959.23 = 474.48 : x
  2. Step 2: Convert to fraction form
    695.81/959.23 = 474.48/x
  3. Step 3: Cross multiply
    695.81x = 959.23 × 474.48
  4. Step 4: Simplify right side
    695.81x = 455,135.45
  5. Step 5: Solve for x
    x = 455,135.45/695.81
  6. Step 6: Final answer
    x = 654.11

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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.