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Finding the Fourth Proportional to 367,078.80, 550,818.81 and 142,448.12

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Solution

The fourth proportional to 367,078.80, 550,818.81 and 142,448.12 is: 213,750.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,078.80 : 550,818.81 = 142,448.12 : x
  2. Step 2: Convert to fraction form
    367,078.80/550,818.81 = 142,448.12/x
  3. Step 3: Cross multiply
    367,078.80x = 550,818.81 × 142,448.12
  4. Step 4: Simplify right side
    367,078.80x = 78,463,103,945.14
  5. Step 5: Solve for x
    x = 78,463,103,945.14/367,078.80
  6. Step 6: Final answer
    x = 213,750.03

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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.