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Finding the Fourth Proportional to 367,062.05, 550,429.05 and 142,347.80

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Solution

The fourth proportional to 367,062.05, 550,429.05 and 142,347.80 is: 213,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,062.05 : 550,429.05 = 142,347.80 : x
  2. Step 2: Convert to fraction form
    367,062.05/550,429.05 = 142,347.80/x
  3. Step 3: Cross multiply
    367,062.05x = 550,429.05 × 142,347.80
  4. Step 4: Simplify right side
    367,062.05x = 78,352,364,323.59
  5. Step 5: Solve for x
    x = 78,352,364,323.59/367,062.05
  6. Step 6: Final answer
    x = 213,458.09

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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.