Home / 278,849.51-384,811.31-158,013.89

Finding the Fourth Proportional to 278,849.51, 384,811.31 and 158,013.89

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Solution

The fourth proportional to 278,849.51, 384,811.31 and 158,013.89 is: 218,058.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,849.51 : 384,811.31 = 158,013.89 : x
  2. Step 2: Convert to fraction form
    278,849.51/384,811.31 = 158,013.89/x
  3. Step 3: Cross multiply
    278,849.51x = 384,811.31 × 158,013.89
  4. Step 4: Simplify right side
    278,849.51x = 60,805,532,181.05
  5. Step 5: Solve for x
    x = 60,805,532,181.05/278,849.51
  6. Step 6: Final answer
    x = 218,058.59

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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.