Home / 345,848.09-518,825.78-146,169.32

Finding the Fourth Proportional to 345,848.09, 518,825.78 and 146,169.32

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Solution

The fourth proportional to 345,848.09, 518,825.78 and 146,169.32 is: 219,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,848.09 : 518,825.78 = 146,169.32 : x
  2. Step 2: Convert to fraction form
    345,848.09/518,825.78 = 146,169.32/x
  3. Step 3: Cross multiply
    345,848.09x = 518,825.78 × 146,169.32
  4. Step 4: Simplify right side
    345,848.09x = 75,836,410,730.22
  5. Step 5: Solve for x
    x = 75,836,410,730.22/345,848.09
  6. Step 6: Final answer
    x = 219,276.65

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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.