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Finding the Fourth Proportional to 366,833.20, 550,249.80 and 209,369.20

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Solution

The fourth proportional to 366,833.20, 550,249.80 and 209,369.20 is: 314,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,833.20 : 550,249.80 = 209,369.20 : x
  2. Step 2: Convert to fraction form
    366,833.20/550,249.80 = 209,369.20/x
  3. Step 3: Cross multiply
    366,833.20x = 550,249.80 × 209,369.20
  4. Step 4: Simplify right side
    366,833.20x = 115,205,360,426.16
  5. Step 5: Solve for x
    x = 115,205,360,426.16/366,833.20
  6. Step 6: Final answer
    x = 314,053.80

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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.