Home / 276,678.96-381,835.54-154,190.36

Finding the Fourth Proportional to 276,678.96, 381,835.54 and 154,190.36

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Solution

The fourth proportional to 276,678.96, 381,835.54 and 154,190.36 is: 212,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,678.96 : 381,835.54 = 154,190.36 : x
  2. Step 2: Convert to fraction form
    276,678.96/381,835.54 = 154,190.36/x
  3. Step 3: Cross multiply
    276,678.96x = 381,835.54 × 154,190.36
  4. Step 4: Simplify right side
    276,678.96x = 58,875,359,373.39
  5. Step 5: Solve for x
    x = 58,875,359,373.39/276,678.96
  6. Step 6: Final answer
    x = 212,793.05

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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.