Home / 221,038.30-331,363.05-132,327.10

Finding the Fourth Proportional to 221,038.30, 331,363.05 and 132,327.10

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Solution

The fourth proportional to 221,038.30, 331,363.05 and 132,327.10 is: 198,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,038.30 : 331,363.05 = 132,327.10 : x
  2. Step 2: Convert to fraction form
    221,038.30/331,363.05 = 132,327.10/x
  3. Step 3: Cross multiply
    221,038.30x = 331,363.05 × 132,327.10
  4. Step 4: Simplify right side
    221,038.30x = 43,848,311,453.66
  5. Step 5: Solve for x
    x = 43,848,311,453.66/221,038.30
  6. Step 6: Final answer
    x = 198,374.27

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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.