Home / 278,947.72-384,956.22-158,089.24

Finding the Fourth Proportional to 278,947.72, 384,956.22 and 158,089.24

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Solution

The fourth proportional to 278,947.72, 384,956.22 and 158,089.24 is: 218,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,947.72 : 384,956.22 = 158,089.24 : x
  2. Step 2: Convert to fraction form
    278,947.72/384,956.22 = 158,089.24/x
  3. Step 3: Cross multiply
    278,947.72x = 384,956.22 × 158,089.24
  4. Step 4: Simplify right side
    278,947.72x = 60,857,436,253.07
  5. Step 5: Solve for x
    x = 60,857,436,253.07/278,947.72
  6. Step 6: Final answer
    x = 218,167.89

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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.