Home / 300,921.90-415,316.43-173,572.62

Finding the Fourth Proportional to 300,921.90, 415,316.43 and 173,572.62

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Solution

The fourth proportional to 300,921.90, 415,316.43 and 173,572.62 is: 239,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,921.90 : 415,316.43 = 173,572.62 : x
  2. Step 2: Convert to fraction form
    300,921.90/415,316.43 = 173,572.62/x
  3. Step 3: Cross multiply
    300,921.90x = 415,316.43 × 173,572.62
  4. Step 4: Simplify right side
    300,921.90x = 72,087,560,884.15
  5. Step 5: Solve for x
    x = 72,087,560,884.15/300,921.90
  6. Step 6: Final answer
    x = 239,555.71

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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.