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Finding the Fourth Proportional to 350.13, 525.29 and 133.77

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Solution

The fourth proportional to 350.13, 525.29 and 133.77 is: 200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.13 : 525.29 = 133.77 : x
  2. Step 2: Convert to fraction form
    350.13/525.29 = 133.77/x
  3. Step 3: Cross multiply
    350.13x = 525.29 × 133.77
  4. Step 4: Simplify right side
    350.13x = 70,268.04
  5. Step 5: Solve for x
    x = 70,268.04/350.13
  6. Step 6: Final answer
    x = 200.69

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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.