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Finding the Fourth Proportional to 276,053.86, 380,952.03 and 155,195.68

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Solution

The fourth proportional to 276,053.86, 380,952.03 and 155,195.68 is: 214,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,053.86 : 380,952.03 = 155,195.68 : x
  2. Step 2: Convert to fraction form
    276,053.86/380,952.03 = 155,195.68/x
  3. Step 3: Cross multiply
    276,053.86x = 380,952.03 × 155,195.68
  4. Step 4: Simplify right side
    276,053.86x = 59,122,109,343.23
  5. Step 5: Solve for x
    x = 59,122,109,343.23/276,053.86
  6. Step 6: Final answer
    x = 214,168.75

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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.