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Finding the Fourth Proportional to 557,107.80, 835,880.40 and 220,091.10

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Solution

The fourth proportional to 557,107.80, 835,880.40 and 220,091.10 is: 330,223.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,107.80 : 835,880.40 = 220,091.10 : x
  2. Step 2: Convert to fraction form
    557,107.80/835,880.40 = 220,091.10/x
  3. Step 3: Cross multiply
    557,107.80x = 835,880.40 × 220,091.10
  4. Step 4: Simplify right side
    557,107.80x = 183,969,836,704.44
  5. Step 5: Solve for x
    x = 183,969,836,704.44/557,107.80
  6. Step 6: Final answer
    x = 330,223.05

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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.