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Finding the Fourth Proportional to 219,489.32, 328,969.66 and 100,998.44

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Solution

The fourth proportional to 219,489.32, 328,969.66 and 100,998.44 is: 151,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,489.32 : 328,969.66 = 100,998.44 : x
  2. Step 2: Convert to fraction form
    219,489.32/328,969.66 = 100,998.44/x
  3. Step 3: Cross multiply
    219,489.32x = 328,969.66 × 100,998.44
  4. Step 4: Simplify right side
    219,489.32x = 33,225,422,467.33
  5. Step 5: Solve for x
    x = 33,225,422,467.33/219,489.32
  6. Step 6: Final answer
    x = 151,376.03

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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.