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Finding the Fourth Proportional to 347,110.38, 520,071.21 and 189,449.46

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Solution

The fourth proportional to 347,110.38, 520,071.21 and 189,449.46 is: 283,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,110.38 : 520,071.21 = 189,449.46 : x
  2. Step 2: Convert to fraction form
    347,110.38/520,071.21 = 189,449.46/x
  3. Step 3: Cross multiply
    347,110.38x = 520,071.21 × 189,449.46
  4. Step 4: Simplify right side
    347,110.38x = 98,527,209,896.05
  5. Step 5: Solve for x
    x = 98,527,209,896.05/347,110.38
  6. Step 6: Final answer
    x = 283,849.79

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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.