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Finding the Fourth Proportional to 219,481.25, 328,967.73 and 100,903.73

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Solution

The fourth proportional to 219,481.25, 328,967.73 and 100,903.73 is: 151,238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,481.25 : 328,967.73 = 100,903.73 : x
  2. Step 2: Convert to fraction form
    219,481.25/328,967.73 = 100,903.73/x
  3. Step 3: Cross multiply
    219,481.25x = 328,967.73 × 100,903.73
  4. Step 4: Simplify right side
    219,481.25x = 33,194,069,361.79
  5. Step 5: Solve for x
    x = 33,194,069,361.79/219,481.25
  6. Step 6: Final answer
    x = 151,238.75

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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.