Home / 278,904.84-418,313.22-231,822.36

Finding the Fourth Proportional to 278,904.84, 418,313.22 and 231,822.36

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Solution

The fourth proportional to 278,904.84, 418,313.22 and 231,822.36 is: 347,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,904.84 : 418,313.22 = 231,822.36 : x
  2. Step 2: Convert to fraction form
    278,904.84/418,313.22 = 231,822.36/x
  3. Step 3: Cross multiply
    278,904.84x = 418,313.22 × 231,822.36
  4. Step 4: Simplify right side
    278,904.84x = 96,974,357,879.60
  5. Step 5: Solve for x
    x = 96,974,357,879.60/278,904.84
  6. Step 6: Final answer
    x = 347,696.93

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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.