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Finding the Fourth Proportional to 350.05, 525.18 and 144.79

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Solution

The fourth proportional to 350.05, 525.18 and 144.79 is: 217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.05 : 525.18 = 144.79 : x
  2. Step 2: Convert to fraction form
    350.05/525.18 = 144.79/x
  3. Step 3: Cross multiply
    350.05x = 525.18 × 144.79
  4. Step 4: Simplify right side
    350.05x = 76,040.81
  5. Step 5: Solve for x
    x = 76,040.81/350.05
  6. Step 6: Final answer
    x = 217.23

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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.