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Finding the Fourth Proportional to 474.07, 654.23 and 261.39

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Solution

The fourth proportional to 474.07, 654.23 and 261.39 is: 360.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.07 : 654.23 = 261.39 : x
  2. Step 2: Convert to fraction form
    474.07/654.23 = 261.39/x
  3. Step 3: Cross multiply
    474.07x = 654.23 × 261.39
  4. Step 4: Simplify right side
    474.07x = 171,009.18
  5. Step 5: Solve for x
    x = 171,009.18/474.07
  6. Step 6: Final answer
    x = 360.73

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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.