Home / 266,789.28-368,181-153,648.48

Finding the Fourth Proportional to 266,789.28, 368,181 and 153,648.48

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Solution

The fourth proportional to 266,789.28, 368,181 and 153,648.48 is: 212,041.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,789.28 : 368,181 = 153,648.48 : x
  2. Step 2: Convert to fraction form
    266,789.28/368,181 = 153,648.48/x
  3. Step 3: Cross multiply
    266,789.28x = 368,181 × 153,648.48
  4. Step 4: Simplify right side
    266,789.28x = 56,570,451,014.88
  5. Step 5: Solve for x
    x = 56,570,451,014.88/266,789.28
  6. Step 6: Final answer
    x = 212,041.69

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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.