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Finding the Fourth Proportional to 557,107.11, 835,561.83 and 253,430.55

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Solution

The fourth proportional to 557,107.11, 835,561.83 and 253,430.55 is: 380,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,107.11 : 835,561.83 = 253,430.55 : x
  2. Step 2: Convert to fraction form
    557,107.11/835,561.83 = 253,430.55/x
  3. Step 3: Cross multiply
    557,107.11x = 835,561.83 × 253,430.55
  4. Step 4: Simplify right side
    557,107.11x = 211,756,894,135.91
  5. Step 5: Solve for x
    x = 211,756,894,135.91/557,107.11
  6. Step 6: Final answer
    x = 380,100.86

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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.