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Finding the Fourth Proportional to 245,129.80, 367,305.90 and 161,926.60

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Solution

The fourth proportional to 245,129.80, 367,305.90 and 161,926.60 is: 242,633.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,129.80 : 367,305.90 = 161,926.60 : x
  2. Step 2: Convert to fraction form
    245,129.80/367,305.90 = 161,926.60/x
  3. Step 3: Cross multiply
    245,129.80x = 367,305.90 × 161,926.60
  4. Step 4: Simplify right side
    245,129.80x = 59,476,595,546.94
  5. Step 5: Solve for x
    x = 59,476,595,546.94/245,129.80
  6. Step 6: Final answer
    x = 242,633.07

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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.