Home / 278,949.69-384,937.92-158,083.92

Finding the Fourth Proportional to 278,949.69, 384,937.92 and 158,083.92

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Solution

The fourth proportional to 278,949.69, 384,937.92 and 158,083.92 is: 218,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,949.69 : 384,937.92 = 158,083.92 : x
  2. Step 2: Convert to fraction form
    278,949.69/384,937.92 = 158,083.92/x
  3. Step 3: Cross multiply
    278,949.69x = 384,937.92 × 158,083.92
  4. Step 4: Simplify right side
    278,949.69x = 60,852,495,350.25
  5. Step 5: Solve for x
    x = 60,852,495,350.25/278,949.69
  6. Step 6: Final answer
    x = 218,148.64

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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.