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Finding the Fourth Proportional to 350.41, 525.65 and 130.98

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Solution

The fourth proportional to 350.41, 525.65 and 130.98 is: 196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.41 : 525.65 = 130.98 : x
  2. Step 2: Convert to fraction form
    350.41/525.65 = 130.98/x
  3. Step 3: Cross multiply
    350.41x = 525.65 × 130.98
  4. Step 4: Simplify right side
    350.41x = 68,849.64
  5. Step 5: Solve for x
    x = 68,849.64/350.41
  6. Step 6: Final answer
    x = 196.48

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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.