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Finding the Fourth Proportional to 312,625.87, 468,843.04 and 112,921.63

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Solution

The fourth proportional to 312,625.87, 468,843.04 and 112,921.63 is: 169,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,625.87 : 468,843.04 = 112,921.63 : x
  2. Step 2: Convert to fraction form
    312,625.87/468,843.04 = 112,921.63/x
  3. Step 3: Cross multiply
    312,625.87x = 468,843.04 × 112,921.63
  4. Step 4: Simplify right side
    312,625.87x = 52,942,520,290.96
  5. Step 5: Solve for x
    x = 52,942,520,290.96/312,625.87
  6. Step 6: Final answer
    x = 169,347.85

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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.