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Finding the Fourth Proportional to 340.77, 512.29 and 273.03

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Solution

The fourth proportional to 340.77, 512.29 and 273.03 is: 410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.77 : 512.29 = 273.03 : x
  2. Step 2: Convert to fraction form
    340.77/512.29 = 273.03/x
  3. Step 3: Cross multiply
    340.77x = 512.29 × 273.03
  4. Step 4: Simplify right side
    340.77x = 139,870.54
  5. Step 5: Solve for x
    x = 139,870.54/340.77
  6. Step 6: Final answer
    x = 410.45

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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.