Home / 276,501.36-381,572.64-155,644.50

Finding the Fourth Proportional to 276,501.36, 381,572.64 and 155,644.50

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Solution

The fourth proportional to 276,501.36, 381,572.64 and 155,644.50 is: 214,789.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,501.36 : 381,572.64 = 155,644.50 : x
  2. Step 2: Convert to fraction form
    276,501.36/381,572.64 = 155,644.50/x
  3. Step 3: Cross multiply
    276,501.36x = 381,572.64 × 155,644.50
  4. Step 4: Simplify right side
    276,501.36x = 59,389,682,766.48
  5. Step 5: Solve for x
    x = 59,389,682,766.48/276,501.36
  6. Step 6: Final answer
    x = 214,789.84

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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.