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Finding the Fourth Proportional to 225,454.87, 310,419.57 and 191,392.75

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Solution

The fourth proportional to 225,454.87, 310,419.57 and 191,392.75 is: 263,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,454.87 : 310,419.57 = 191,392.75 : x
  2. Step 2: Convert to fraction form
    225,454.87/310,419.57 = 191,392.75/x
  3. Step 3: Cross multiply
    225,454.87x = 310,419.57 × 191,392.75
  4. Step 4: Simplify right side
    225,454.87x = 59,412,055,156.12
  5. Step 5: Solve for x
    x = 59,412,055,156.12/225,454.87
  6. Step 6: Final answer
    x = 263,520.83

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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.