Home / 278,880.35-384,746.22-206,456.59

Finding the Fourth Proportional to 278,880.35, 384,746.22 and 206,456.59

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Solution

The fourth proportional to 278,880.35, 384,746.22 and 206,456.59 is: 284,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,880.35 : 384,746.22 = 206,456.59 : x
  2. Step 2: Convert to fraction form
    278,880.35/384,746.22 = 206,456.59/x
  3. Step 3: Cross multiply
    278,880.35x = 384,746.22 × 206,456.59
  4. Step 4: Simplify right side
    278,880.35x = 79,433,392,932.13
  5. Step 5: Solve for x
    x = 79,433,392,932.13/278,880.35
  6. Step 6: Final answer
    x = 284,829.65

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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.