Home / 386,734.80-579,508.83-161,972.26

Finding the Fourth Proportional to 386,734.80, 579,508.83 and 161,972.26

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Solution

The fourth proportional to 386,734.80, 579,508.83 and 161,972.26 is: 242,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,734.80 : 579,508.83 = 161,972.26 : x
  2. Step 2: Convert to fraction form
    386,734.80/579,508.83 = 161,972.26/x
  3. Step 3: Cross multiply
    386,734.80x = 579,508.83 × 161,972.26
  4. Step 4: Simplify right side
    386,734.80x = 93,864,353,436.28
  5. Step 5: Solve for x
    x = 93,864,353,436.28/386,734.80
  6. Step 6: Final answer
    x = 242,709.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.