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Finding the Fourth Proportional to 561.36, 842.06 and 150.48

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Solution

The fourth proportional to 561.36, 842.06 and 150.48 is: 225.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.36 : 842.06 = 150.48 : x
  2. Step 2: Convert to fraction form
    561.36/842.06 = 150.48/x
  3. Step 3: Cross multiply
    561.36x = 842.06 × 150.48
  4. Step 4: Simplify right side
    561.36x = 126,712.44
  5. Step 5: Solve for x
    x = 126,712.44/561.36
  6. Step 6: Final answer
    x = 225.72

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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.