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Finding the Fourth Proportional to 347.08, 520.30 and 164.32

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Solution

The fourth proportional to 347.08, 520.30 and 164.32 is: 246.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.08 : 520.30 = 164.32 : x
  2. Step 2: Convert to fraction form
    347.08/520.30 = 164.32/x
  3. Step 3: Cross multiply
    347.08x = 520.30 × 164.32
  4. Step 4: Simplify right side
    347.08x = 85,495.70
  5. Step 5: Solve for x
    x = 85,495.70/347.08
  6. Step 6: Final answer
    x = 246.33

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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.