Home / 278,905.34-418,313.97-231,822.86

Finding the Fourth Proportional to 278,905.34, 418,313.97 and 231,822.86

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Solution

The fourth proportional to 278,905.34, 418,313.97 and 231,822.86 is: 347,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,905.34 : 418,313.97 = 231,822.86 : x
  2. Step 2: Convert to fraction form
    278,905.34/418,313.97 = 231,822.86/x
  3. Step 3: Cross multiply
    278,905.34x = 418,313.97 × 231,822.86
  4. Step 4: Simplify right side
    278,905.34x = 96,974,740,903.35
  5. Step 5: Solve for x
    x = 96,974,740,903.35/278,905.34
  6. Step 6: Final answer
    x = 347,697.68

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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.