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Finding the Fourth Proportional to 367,620.40, 551,495.40 and 131,100.40

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Solution

The fourth proportional to 367,620.40, 551,495.40 and 131,100.40 is: 196,673.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,620.40 : 551,495.40 = 131,100.40 : x
  2. Step 2: Convert to fraction form
    367,620.40/551,495.40 = 131,100.40/x
  3. Step 3: Cross multiply
    367,620.40x = 551,495.40 × 131,100.40
  4. Step 4: Simplify right side
    367,620.40x = 72,301,267,538.16
  5. Step 5: Solve for x
    x = 72,301,267,538.16/367,620.40
  6. Step 6: Final answer
    x = 196,673.71

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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.