Home / 278,930.34-418,220.19-203,056.02

Finding the Fourth Proportional to 278,930.34, 418,220.19 and 203,056.02

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Solution

The fourth proportional to 278,930.34, 418,220.19 and 203,056.02 is: 304,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,930.34 : 418,220.19 = 203,056.02 : x
  2. Step 2: Convert to fraction form
    278,930.34/418,220.19 = 203,056.02/x
  3. Step 3: Cross multiply
    278,930.34x = 418,220.19 × 203,056.02
  4. Step 4: Simplify right side
    278,930.34x = 84,922,127,265.04
  5. Step 5: Solve for x
    x = 84,922,127,265.04/278,930.34
  6. Step 6: Final answer
    x = 304,456.40

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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.