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Finding the Fourth Proportional to 369,990, 510,589.89 and 200,227.77

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Solution

The fourth proportional to 369,990, 510,589.89 and 200,227.77 is: 276,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,990 : 510,589.89 = 200,227.77 : x
  2. Step 2: Convert to fraction form
    369,990/510,589.89 = 200,227.77/x
  3. Step 3: Cross multiply
    369,990x = 510,589.89 × 200,227.77
  4. Step 4: Simplify right side
    369,990x = 102,234,275,059.25
  5. Step 5: Solve for x
    x = 102,234,275,059.25/369,990
  6. Step 6: Final answer
    x = 276,316.32

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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.