Home / 345,850.09-518,828.78-146,171.32

Finding the Fourth Proportional to 345,850.09, 518,828.78 and 146,171.32

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Solution

The fourth proportional to 345,850.09, 518,828.78 and 146,171.32 is: 219,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,850.09 : 518,828.78 = 146,171.32 : x
  2. Step 2: Convert to fraction form
    345,850.09/518,828.78 = 146,171.32/x
  3. Step 3: Cross multiply
    345,850.09x = 518,828.78 × 146,171.32
  4. Step 4: Simplify right side
    345,850.09x = 75,837,887,626.59
  5. Step 5: Solve for x
    x = 75,837,887,626.59/345,850.09
  6. Step 6: Final answer
    x = 219,279.65

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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.