Home / 345,965.08-518,984.54-146,305.66

Finding the Fourth Proportional to 345,965.08, 518,984.54 and 146,305.66

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Solution

The fourth proportional to 345,965.08, 518,984.54 and 146,305.66 is: 219,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,965.08 : 518,984.54 = 146,305.66 : x
  2. Step 2: Convert to fraction form
    345,965.08/518,984.54 = 146,305.66/x
  3. Step 3: Cross multiply
    345,965.08x = 518,984.54 × 146,305.66
  4. Step 4: Simplify right side
    345,965.08x = 75,930,375,654.50
  5. Step 5: Solve for x
    x = 75,930,375,654.50/345,965.08
  6. Step 6: Final answer
    x = 219,474.10

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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.