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Finding the Fourth Proportional to 312,599.34, 468,898.92 and 75,940.38

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Solution

The fourth proportional to 312,599.34, 468,898.92 and 75,940.38 is: 113,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,599.34 : 468,898.92 = 75,940.38 : x
  2. Step 2: Convert to fraction form
    312,599.34/468,898.92 = 75,940.38/x
  3. Step 3: Cross multiply
    312,599.34x = 468,898.92 × 75,940.38
  4. Step 4: Simplify right side
    312,599.34x = 35,608,362,166.39
  5. Step 5: Solve for x
    x = 35,608,362,166.39/312,599.34
  6. Step 6: Final answer
    x = 113,910.55

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1.5x scale

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.