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Finding the Fourth Proportional to 567.40, 850.20 and 374.80

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Solution

The fourth proportional to 567.40, 850.20 and 374.80 is: 561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.40 : 850.20 = 374.80 : x
  2. Step 2: Convert to fraction form
    567.40/850.20 = 374.80/x
  3. Step 3: Cross multiply
    567.40x = 850.20 × 374.80
  4. Step 4: Simplify right side
    567.40x = 318,654.96
  5. Step 5: Solve for x
    x = 318,654.96/567.40
  6. Step 6: Final answer
    x = 561.61

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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.