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Finding the Fourth Proportional to 350.66, 526.02 and 131.22

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Solution

The fourth proportional to 350.66, 526.02 and 131.22 is: 196.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.66 : 526.02 = 131.22 : x
  2. Step 2: Convert to fraction form
    350.66/526.02 = 131.22/x
  3. Step 3: Cross multiply
    350.66x = 526.02 × 131.22
  4. Step 4: Simplify right side
    350.66x = 69,024.34
  5. Step 5: Solve for x
    x = 69,024.34/350.66
  6. Step 6: Final answer
    x = 196.84

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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.