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Finding the Fourth Proportional to 250.43, 345.59 and 145.52

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Solution

The fourth proportional to 250.43, 345.59 and 145.52 is: 200.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.43 : 345.59 = 145.52 : x
  2. Step 2: Convert to fraction form
    250.43/345.59 = 145.52/x
  3. Step 3: Cross multiply
    250.43x = 345.59 × 145.52
  4. Step 4: Simplify right side
    250.43x = 50,288.53
  5. Step 5: Solve for x
    x = 50,288.53/250.43
  6. Step 6: Final answer
    x = 200.81

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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.