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Finding the Fourth Proportional to 511.05, 767.03 and 348.86

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Solution

The fourth proportional to 511.05, 767.03 and 348.86 is: 523.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.05 : 767.03 = 348.86 : x
  2. Step 2: Convert to fraction form
    511.05/767.03 = 348.86/x
  3. Step 3: Cross multiply
    511.05x = 767.03 × 348.86
  4. Step 4: Simplify right side
    511.05x = 267,580.51
  5. Step 5: Solve for x
    x = 267,580.51/511.05
  6. Step 6: Final answer
    x = 523.59

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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.