Home / 345,725.38-518,138.52-177,102.82

Finding the Fourth Proportional to 345,725.38, 518,138.52 and 177,102.82

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Solution

The fourth proportional to 345,725.38, 518,138.52 and 177,102.82 is: 265,423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,725.38 : 518,138.52 = 177,102.82 : x
  2. Step 2: Convert to fraction form
    345,725.38/518,138.52 = 177,102.82/x
  3. Step 3: Cross multiply
    345,725.38x = 518,138.52 × 177,102.82
  4. Step 4: Simplify right side
    345,725.38x = 91,763,793,042.63
  5. Step 5: Solve for x
    x = 91,763,793,042.63/345,725.38
  6. Step 6: Final answer
    x = 265,423.94

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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.