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Finding the Fourth Proportional to 225,781.02, 311,440.95 and 149,299.74

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Solution

The fourth proportional to 225,781.02, 311,440.95 and 149,299.74 is: 205,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,781.02 : 311,440.95 = 149,299.74 : x
  2. Step 2: Convert to fraction form
    225,781.02/311,440.95 = 149,299.74/x
  3. Step 3: Cross multiply
    225,781.02x = 311,440.95 × 149,299.74
  4. Step 4: Simplify right side
    225,781.02x = 46,498,052,860.35
  5. Step 5: Solve for x
    x = 46,498,052,860.35/225,781.02
  6. Step 6: Final answer
    x = 205,943.14

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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.