Home / 345,789.70-518,477.19-135,176.74

Finding the Fourth Proportional to 345,789.70, 518,477.19 and 135,176.74

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Solution

The fourth proportional to 345,789.70, 518,477.19 and 135,176.74 is: 202,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,789.70 : 518,477.19 = 135,176.74 : x
  2. Step 2: Convert to fraction form
    345,789.70/518,477.19 = 135,176.74/x
  3. Step 3: Cross multiply
    345,789.70x = 518,477.19 × 135,176.74
  4. Step 4: Simplify right side
    345,789.70x = 70,086,056,308.56
  5. Step 5: Solve for x
    x = 70,086,056,308.56/345,789.70
  6. Step 6: Final answer
    x = 202,684.05

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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.