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Finding the Fourth Proportional to 200.68, 277.05 and 148.26

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Solution

The fourth proportional to 200.68, 277.05 and 148.26 is: 204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.68 : 277.05 = 148.26 : x
  2. Step 2: Convert to fraction form
    200.68/277.05 = 148.26/x
  3. Step 3: Cross multiply
    200.68x = 277.05 × 148.26
  4. Step 4: Simplify right side
    200.68x = 41,077.03
  5. Step 5: Solve for x
    x = 41,077.03/200.68
  6. Step 6: Final answer
    x = 204.69

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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.