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Finding the Fourth Proportional to 311,625.80, 467,110.65 and 122,012.90

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Solution

The fourth proportional to 311,625.80, 467,110.65 and 122,012.90 is: 182,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,625.80 : 467,110.65 = 122,012.90 : x
  2. Step 2: Convert to fraction form
    311,625.80/467,110.65 = 122,012.90/x
  3. Step 3: Cross multiply
    311,625.80x = 467,110.65 × 122,012.90
  4. Step 4: Simplify right side
    311,625.80x = 56,993,525,027.39
  5. Step 5: Solve for x
    x = 56,993,525,027.39/311,625.80
  6. Step 6: Final answer
    x = 182,890.91

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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.