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Finding the Fourth Proportional to 465.56, 696.86 and 248.48

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Solution

The fourth proportional to 465.56, 696.86 and 248.48 is: 371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.56 : 696.86 = 248.48 : x
  2. Step 2: Convert to fraction form
    465.56/696.86 = 248.48/x
  3. Step 3: Cross multiply
    465.56x = 696.86 × 248.48
  4. Step 4: Simplify right side
    465.56x = 173,155.77
  5. Step 5: Solve for x
    x = 173,155.77/465.56
  6. Step 6: Final answer
    x = 371.93

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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.