Home / 516,138.67-774,215.78-179,190.01

Finding the Fourth Proportional to 516,138.67, 774,215.78 and 179,190.01

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Solution

The fourth proportional to 516,138.67, 774,215.78 and 179,190.01 is: 268,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,138.67 : 774,215.78 = 179,190.01 : x
  2. Step 2: Convert to fraction form
    516,138.67/774,215.78 = 179,190.01/x
  3. Step 3: Cross multiply
    516,138.67x = 774,215.78 × 179,190.01
  4. Step 4: Simplify right side
    516,138.67x = 138,731,733,360.36
  5. Step 5: Solve for x
    x = 138,731,733,360.36/516,138.67
  6. Step 6: Final answer
    x = 268,787.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.