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Finding the Fourth Proportional to 346.86, 519.89 and 243.59

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Solution

The fourth proportional to 346.86, 519.89 and 243.59 is: 365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.86 : 519.89 = 243.59 : x
  2. Step 2: Convert to fraction form
    346.86/519.89 = 243.59/x
  3. Step 3: Cross multiply
    346.86x = 519.89 × 243.59
  4. Step 4: Simplify right side
    346.86x = 126,636.19
  5. Step 5: Solve for x
    x = 126,636.19/346.86
  6. Step 6: Final answer
    x = 365.09

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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.