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Finding the Fourth Proportional to 399,292.92, 550,891.92 and 263,394.36

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Solution

The fourth proportional to 399,292.92, 550,891.92 and 263,394.36 is: 363,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,292.92 : 550,891.92 = 263,394.36 : x
  2. Step 2: Convert to fraction form
    399,292.92/550,891.92 = 263,394.36/x
  3. Step 3: Cross multiply
    399,292.92x = 550,891.92 × 263,394.36
  4. Step 4: Simplify right side
    399,292.92x = 145,101,824,697.57
  5. Step 5: Solve for x
    x = 145,101,824,697.57/399,292.92
  6. Step 6: Final answer
    x = 363,396.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.