Home / 345,490.72-518,512.56-179,326.24

Finding the Fourth Proportional to 345,490.72, 518,512.56 and 179,326.24

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Solution

The fourth proportional to 345,490.72, 518,512.56 and 179,326.24 is: 269,132.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,490.72 : 518,512.56 = 179,326.24 : x
  2. Step 2: Convert to fraction form
    345,490.72/518,512.56 = 179,326.24/x
  3. Step 3: Cross multiply
    345,490.72x = 518,512.56 × 179,326.24
  4. Step 4: Simplify right side
    345,490.72x = 92,982,907,777.57
  5. Step 5: Solve for x
    x = 92,982,907,777.57/345,490.72
  6. Step 6: Final answer
    x = 269,132.87

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1.5x scale

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.