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Finding the Fourth Proportional to 350.75, 526.23 and 155.80

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Solution

The fourth proportional to 350.75, 526.23 and 155.80 is: 233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.75 : 526.23 = 155.80 : x
  2. Step 2: Convert to fraction form
    350.75/526.23 = 155.80/x
  3. Step 3: Cross multiply
    350.75x = 526.23 × 155.80
  4. Step 4: Simplify right side
    350.75x = 81,986.63
  5. Step 5: Solve for x
    x = 81,986.63/350.75
  6. Step 6: Final answer
    x = 233.75

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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.