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Finding the Fourth Proportional to 347,105.38, 520,063.70 and 189,444.46

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Solution

The fourth proportional to 347,105.38, 520,063.70 and 189,444.46 is: 283,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,105.38 : 520,063.70 = 189,444.46 : x
  2. Step 2: Convert to fraction form
    347,105.38/520,063.70 = 189,444.46/x
  3. Step 3: Cross multiply
    347,105.38x = 520,063.70 × 189,444.46
  4. Step 4: Simplify right side
    347,105.38x = 98,523,186,812.10
  5. Step 5: Solve for x
    x = 98,523,186,812.10/347,105.38
  6. Step 6: Final answer
    x = 283,842.29

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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.