Home / 345,009.60-517,372.44-131,856.24

Finding the Fourth Proportional to 345,009.60, 517,372.44 and 131,856.24

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Solution

The fourth proportional to 345,009.60, 517,372.44 and 131,856.24 is: 197,730.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,009.60 : 517,372.44 = 131,856.24 : x
  2. Step 2: Convert to fraction form
    345,009.60/517,372.44 = 131,856.24/x
  3. Step 3: Cross multiply
    345,009.60x = 517,372.44 × 131,856.24
  4. Step 4: Simplify right side
    345,009.60x = 68,218,784,618.03
  5. Step 5: Solve for x
    x = 68,218,784,618.03/345,009.60
  6. Step 6: Final answer
    x = 197,730.11

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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.