Home / 278,872.05-384,842.37-158,036.34

Finding the Fourth Proportional to 278,872.05, 384,842.37 and 158,036.34

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Solution

The fourth proportional to 278,872.05, 384,842.37 and 158,036.34 is: 218,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,872.05 : 384,842.37 = 158,036.34 : x
  2. Step 2: Convert to fraction form
    278,872.05/384,842.37 = 158,036.34/x
  3. Step 3: Cross multiply
    278,872.05x = 384,842.37 × 158,036.34
  4. Step 4: Simplify right side
    278,872.05x = 60,819,079,631.73
  5. Step 5: Solve for x
    x = 60,819,079,631.73/278,872.05
  6. Step 6: Final answer
    x = 218,089.55

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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.