Home / 311,795.50-430,394.79-204,372.46

Finding the Fourth Proportional to 311,795.50, 430,394.79 and 204,372.46

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Solution

The fourth proportional to 311,795.50, 430,394.79 and 204,372.46 is: 282,110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,795.50 : 430,394.79 = 204,372.46 : x
  2. Step 2: Convert to fraction form
    311,795.50/430,394.79 = 204,372.46/x
  3. Step 3: Cross multiply
    311,795.50x = 430,394.79 × 204,372.46
  4. Step 4: Simplify right side
    311,795.50x = 87,960,842,003.48
  5. Step 5: Solve for x
    x = 87,960,842,003.48/311,795.50
  6. Step 6: Final answer
    x = 282,110.68

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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.