Home / 276,237.54-381,241.49-155,383.92

Finding the Fourth Proportional to 276,237.54, 381,241.49 and 155,383.92

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Solution

The fourth proportional to 276,237.54, 381,241.49 and 155,383.92 is: 214,448.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,237.54 : 381,241.49 = 155,383.92 : x
  2. Step 2: Convert to fraction form
    276,237.54/381,241.49 = 155,383.92/x
  3. Step 3: Cross multiply
    276,237.54x = 381,241.49 × 155,383.92
  4. Step 4: Simplify right side
    276,237.54x = 59,238,796,405.92
  5. Step 5: Solve for x
    x = 59,238,796,405.92/276,237.54
  6. Step 6: Final answer
    x = 214,448.75

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1.5x scale

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.