Home / 386,072.15-579,180.96-146,257.88

Finding the Fourth Proportional to 386,072.15, 579,180.96 and 146,257.88

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Solution

The fourth proportional to 386,072.15, 579,180.96 and 146,257.88 is: 219,414.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,072.15 : 579,180.96 = 146,257.88 : x
  2. Step 2: Convert to fraction form
    386,072.15/579,180.96 = 146,257.88/x
  3. Step 3: Cross multiply
    386,072.15x = 579,180.96 × 146,257.88
  4. Step 4: Simplify right side
    386,072.15x = 84,709,776,450.06
  5. Step 5: Solve for x
    x = 84,709,776,450.06/386,072.15
  6. Step 6: Final answer
    x = 219,414.37

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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.