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Finding the Fourth Proportional to 346.13, 518.04 and 243.17

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Solution

The fourth proportional to 346.13, 518.04 and 243.17 is: 363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.13 : 518.04 = 243.17 : x
  2. Step 2: Convert to fraction form
    346.13/518.04 = 243.17/x
  3. Step 3: Cross multiply
    346.13x = 518.04 × 243.17
  4. Step 4: Simplify right side
    346.13x = 125,971.79
  5. Step 5: Solve for x
    x = 125,971.79/346.13
  6. Step 6: Final answer
    x = 363.94

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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.