Home / 278,867.54-384,836.16-158,031.84

Finding the Fourth Proportional to 278,867.54, 384,836.16 and 158,031.84

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Solution

The fourth proportional to 278,867.54, 384,836.16 and 158,031.84 is: 218,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,867.54 : 384,836.16 = 158,031.84 : x
  2. Step 2: Convert to fraction form
    278,867.54/384,836.16 = 158,031.84/x
  3. Step 3: Cross multiply
    278,867.54x = 384,836.16 × 158,031.84
  4. Step 4: Simplify right side
    278,867.54x = 60,816,366,463.33
  5. Step 5: Solve for x
    x = 60,816,366,463.33/278,867.54
  6. Step 6: Final answer
    x = 218,083.35

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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.