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Finding the Fourth Proportional to 346.76, 519.36 and 163.77

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Solution

The fourth proportional to 346.76, 519.36 and 163.77 is: 245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.76 : 519.36 = 163.77 : x
  2. Step 2: Convert to fraction form
    346.76/519.36 = 163.77/x
  3. Step 3: Cross multiply
    346.76x = 519.36 × 163.77
  4. Step 4: Simplify right side
    346.76x = 85,055.59
  5. Step 5: Solve for x
    x = 85,055.59/346.76
  6. Step 6: Final answer
    x = 245.29

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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.