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Finding the Fourth Proportional to 371,129.60, 556,694.40 and 161,177.60

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Solution

The fourth proportional to 371,129.60, 556,694.40 and 161,177.60 is: 241,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,129.60 : 556,694.40 = 161,177.60 : x
  2. Step 2: Convert to fraction form
    371,129.60/556,694.40 = 161,177.60/x
  3. Step 3: Cross multiply
    371,129.60x = 556,694.40 × 161,177.60
  4. Step 4: Simplify right side
    371,129.60x = 89,726,667,325.44
  5. Step 5: Solve for x
    x = 89,726,667,325.44/371,129.60
  6. Step 6: Final answer
    x = 241,766.40

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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.