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Finding the Fourth Proportional to 312,487.48, 468,753.30 and 154,673.56

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Solution

The fourth proportional to 312,487.48, 468,753.30 and 154,673.56 is: 232,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,487.48 : 468,753.30 = 154,673.56 : x
  2. Step 2: Convert to fraction form
    312,487.48/468,753.30 = 154,673.56/x
  3. Step 3: Cross multiply
    312,487.48x = 468,753.30 × 154,673.56
  4. Step 4: Simplify right side
    312,487.48x = 72,503,741,672.75
  5. Step 5: Solve for x
    x = 72,503,741,672.75/312,487.48
  6. Step 6: Final answer
    x = 232,021.27

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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.