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Finding the Fourth Proportional to 307,838.30, 424,960.83 and 178,751.62

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Solution

The fourth proportional to 307,838.30, 424,960.83 and 178,751.62 is: 246,760.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,838.30 : 424,960.83 = 178,751.62 : x
  2. Step 2: Convert to fraction form
    307,838.30/424,960.83 = 178,751.62/x
  3. Step 3: Cross multiply
    307,838.30x = 424,960.83 × 178,751.62
  4. Step 4: Simplify right side
    307,838.30x = 75,962,437,861.45
  5. Step 5: Solve for x
    x = 75,962,437,861.45/307,838.30
  6. Step 6: Final answer
    x = 246,760.85

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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.