Home / 345,790.20-518,477.94-135,177.24

Finding the Fourth Proportional to 345,790.20, 518,477.94 and 135,177.24

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Solution

The fourth proportional to 345,790.20, 518,477.94 and 135,177.24 is: 202,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,790.20 : 518,477.94 = 135,177.24 : x
  2. Step 2: Convert to fraction form
    345,790.20/518,477.94 = 135,177.24/x
  3. Step 3: Cross multiply
    345,790.20x = 518,477.94 × 135,177.24
  4. Step 4: Simplify right side
    345,790.20x = 70,086,416,930.09
  5. Step 5: Solve for x
    x = 70,086,416,930.09/345,790.20
  6. Step 6: Final answer
    x = 202,684.80

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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.