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Finding the Fourth Proportional to 250.04, 345.07 and 145.15

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Solution

The fourth proportional to 250.04, 345.07 and 145.15 is: 200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.04 : 345.07 = 145.15 : x
  2. Step 2: Convert to fraction form
    250.04/345.07 = 145.15/x
  3. Step 3: Cross multiply
    250.04x = 345.07 × 145.15
  4. Step 4: Simplify right side
    250.04x = 50,086.91
  5. Step 5: Solve for x
    x = 50,086.91/250.04
  6. Step 6: Final answer
    x = 200.32

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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.