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Finding the Fourth Proportional to 200.35, 276.54 and 117.48

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Solution

The fourth proportional to 200.35, 276.54 and 117.48 is: 162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.35 : 276.54 = 117.48 : x
  2. Step 2: Convert to fraction form
    200.35/276.54 = 117.48/x
  3. Step 3: Cross multiply
    200.35x = 276.54 × 117.48
  4. Step 4: Simplify right side
    200.35x = 32,487.92
  5. Step 5: Solve for x
    x = 32,487.92/200.35
  6. Step 6: Final answer
    x = 162.16

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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.