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Finding the Fourth Proportional to 347.38, 520.83 and 173.86

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Solution

The fourth proportional to 347.38, 520.83 and 173.86 is: 260.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.38 : 520.83 = 173.86 : x
  2. Step 2: Convert to fraction form
    347.38/520.83 = 173.86/x
  3. Step 3: Cross multiply
    347.38x = 520.83 × 173.86
  4. Step 4: Simplify right side
    347.38x = 90,551.50
  5. Step 5: Solve for x
    x = 90,551.50/347.38
  6. Step 6: Final answer
    x = 260.67

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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.