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Finding the Fourth Proportional to 620.13, 929.67 and 273.10

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Solution

The fourth proportional to 620.13, 929.67 and 273.10 is: 409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.13 : 929.67 = 273.10 : x
  2. Step 2: Convert to fraction form
    620.13/929.67 = 273.10/x
  3. Step 3: Cross multiply
    620.13x = 929.67 × 273.10
  4. Step 4: Simplify right side
    620.13x = 253,892.88
  5. Step 5: Solve for x
    x = 253,892.88/620.13
  6. Step 6: Final answer
    x = 409.42

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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.