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Finding the Fourth Proportional to 351,842, 485,572.68 and 192,896.72

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Solution

The fourth proportional to 351,842, 485,572.68 and 192,896.72 is: 266,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,842 : 485,572.68 = 192,896.72 : x
  2. Step 2: Convert to fraction form
    351,842/485,572.68 = 192,896.72/x
  3. Step 3: Cross multiply
    351,842x = 485,572.68 × 192,896.72
  4. Step 4: Simplify right side
    351,842x = 93,665,377,293.61
  5. Step 5: Solve for x
    x = 93,665,377,293.61/351,842
  6. Step 6: Final answer
    x = 266,214.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.