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Finding the Fourth Proportional to 203,498.40, 305,247.60 and 55,754.40

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Solution

The fourth proportional to 203,498.40, 305,247.60 and 55,754.40 is: 83,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,498.40 : 305,247.60 = 55,754.40 : x
  2. Step 2: Convert to fraction form
    203,498.40/305,247.60 = 55,754.40/x
  3. Step 3: Cross multiply
    203,498.40x = 305,247.60 × 55,754.40
  4. Step 4: Simplify right side
    203,498.40x = 17,018,896,789.44
  5. Step 5: Solve for x
    x = 17,018,896,789.44/203,498.40
  6. Step 6: Final answer
    x = 83,631.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.