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Finding the Fourth Proportional to 323,126.61, 445,624.41 and 202,278.90

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Solution

The fourth proportional to 323,126.61, 445,624.41 and 202,278.90 is: 278,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,126.61 : 445,624.41 = 202,278.90 : x
  2. Step 2: Convert to fraction form
    323,126.61/445,624.41 = 202,278.90/x
  3. Step 3: Cross multiply
    323,126.61x = 445,624.41 × 202,278.90
  4. Step 4: Simplify right side
    323,126.61x = 90,140,415,467.95
  5. Step 5: Solve for x
    x = 90,140,415,467.95/323,126.61
  6. Step 6: Final answer
    x = 278,963.15

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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.