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Finding the Fourth Proportional to 269,874.80, 372,441.72 and 149,015.64

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Solution

The fourth proportional to 269,874.80, 372,441.72 and 149,015.64 is: 205,649.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,874.80 : 372,441.72 = 149,015.64 : x
  2. Step 2: Convert to fraction form
    269,874.80/372,441.72 = 149,015.64/x
  3. Step 3: Cross multiply
    269,874.80x = 372,441.72 × 149,015.64
  4. Step 4: Simplify right side
    269,874.80x = 55,499,641,268.50
  5. Step 5: Solve for x
    x = 55,499,641,268.50/269,874.80
  6. Step 6: Final answer
    x = 205,649.59

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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.