Home / 276,976.40-415,316.97-143,722.49

Finding the Fourth Proportional to 276,976.40, 415,316.97 and 143,722.49

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Solution

The fourth proportional to 276,976.40, 415,316.97 and 143,722.49 is: 215,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,976.40 : 415,316.97 = 143,722.49 : x
  2. Step 2: Convert to fraction form
    276,976.40/415,316.97 = 143,722.49/x
  3. Step 3: Cross multiply
    276,976.40x = 415,316.97 × 143,722.49
  4. Step 4: Simplify right side
    276,976.40x = 59,690,386,991.07
  5. Step 5: Solve for x
    x = 59,690,386,991.07/276,976.40
  6. Step 6: Final answer
    x = 215,507.13

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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.