Home / 276,046.49-380,897.51-155,171.69

Finding the Fourth Proportional to 276,046.49, 380,897.51 and 155,171.69

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Solution

The fourth proportional to 276,046.49, 380,897.51 and 155,171.69 is: 214,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,046.49 : 380,897.51 = 155,171.69 : x
  2. Step 2: Convert to fraction form
    276,046.49/380,897.51 = 155,171.69/x
  3. Step 3: Cross multiply
    276,046.49x = 380,897.51 × 155,171.69
  4. Step 4: Simplify right side
    276,046.49x = 59,104,508,826.93
  5. Step 5: Solve for x
    x = 59,104,508,826.93/276,046.49
  6. Step 6: Final answer
    x = 214,110.71

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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.