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Finding the Fourth Proportional to 605.67, 907.32 and 344.90

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Solution

The fourth proportional to 605.67, 907.32 and 344.90 is: 516.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.67 : 907.32 = 344.90 : x
  2. Step 2: Convert to fraction form
    605.67/907.32 = 344.90/x
  3. Step 3: Cross multiply
    605.67x = 907.32 × 344.90
  4. Step 4: Simplify right side
    605.67x = 312,930.13
  5. Step 5: Solve for x
    x = 312,930.13/605.67
  6. Step 6: Final answer
    x = 516.67

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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.