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Finding the Fourth Proportional to 437.67, 655.70 and 341.28

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Solution

The fourth proportional to 437.67, 655.70 and 341.28 is: 511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.67 : 655.70 = 341.28 : x
  2. Step 2: Convert to fraction form
    437.67/655.70 = 341.28/x
  3. Step 3: Cross multiply
    437.67x = 655.70 × 341.28
  4. Step 4: Simplify right side
    437.67x = 223,775.59
  5. Step 5: Solve for x
    x = 223,775.59/437.67
  6. Step 6: Final answer
    x = 511.29

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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.