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Finding the Fourth Proportional to 225,181, 310,626.90 and 144,620.80

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Solution

The fourth proportional to 225,181, 310,626.90 and 144,620.80 is: 199,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,181 : 310,626.90 = 144,620.80 : x
  2. Step 2: Convert to fraction form
    225,181/310,626.90 = 144,620.80/x
  3. Step 3: Cross multiply
    225,181x = 310,626.90 × 144,620.80
  4. Step 4: Simplify right side
    225,181x = 44,923,110,779.52
  5. Step 5: Solve for x
    x = 44,923,110,779.52/225,181
  6. Step 6: Final answer
    x = 199,497.79

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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.