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Finding the Fourth Proportional to 263,325.30, 394,987.95 and 210,837.30

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Solution

The fourth proportional to 263,325.30, 394,987.95 and 210,837.30 is: 316,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,325.30 : 394,987.95 = 210,837.30 : x
  2. Step 2: Convert to fraction form
    263,325.30/394,987.95 = 210,837.30/x
  3. Step 3: Cross multiply
    263,325.30x = 394,987.95 × 210,837.30
  4. Step 4: Simplify right side
    263,325.30x = 83,278,192,910.54
  5. Step 5: Solve for x
    x = 83,278,192,910.54/263,325.30
  6. Step 6: Final answer
    x = 316,255.95

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1.5x scale

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.