Home / 276,239.52-381,194.40-153,728.64

Finding the Fourth Proportional to 276,239.52, 381,194.40 and 153,728.64

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Solution

The fourth proportional to 276,239.52, 381,194.40 and 153,728.64 is: 212,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,239.52 : 381,194.40 = 153,728.64 : x
  2. Step 2: Convert to fraction form
    276,239.52/381,194.40 = 153,728.64/x
  3. Step 3: Cross multiply
    276,239.52x = 381,194.40 × 153,728.64
  4. Step 4: Simplify right side
    276,239.52x = 58,600,496,687.62
  5. Step 5: Solve for x
    x = 58,600,496,687.62/276,239.52
  6. Step 6: Final answer
    x = 212,136.54

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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.