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Finding the Fourth Proportional to 369,891.27, 510,453.27 and 200,128.77

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Solution

The fourth proportional to 369,891.27, 510,453.27 and 200,128.77 is: 276,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,891.27 : 510,453.27 = 200,128.77 : x
  2. Step 2: Convert to fraction form
    369,891.27/510,453.27 = 200,128.77/x
  3. Step 3: Cross multiply
    369,891.27x = 510,453.27 × 200,128.77
  4. Step 4: Simplify right side
    369,891.27x = 102,156,385,067.58
  5. Step 5: Solve for x
    x = 102,156,385,067.58/369,891.27
  6. Step 6: Final answer
    x = 276,179.50

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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.