Home / 276,945.87-415,252.70-126,998.31

Finding the Fourth Proportional to 276,945.87, 415,252.70 and 126,998.31

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Solution

The fourth proportional to 276,945.87, 415,252.70 and 126,998.31 is: 190,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,945.87 : 415,252.70 = 126,998.31 : x
  2. Step 2: Convert to fraction form
    276,945.87/415,252.70 = 126,998.31/x
  3. Step 3: Cross multiply
    276,945.87x = 415,252.70 × 126,998.31
  4. Step 4: Simplify right side
    276,945.87x = 52,736,390,487.95
  5. Step 5: Solve for x
    x = 52,736,390,487.95/276,945.87
  6. Step 6: Final answer
    x = 190,421.29

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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.