Home / 221,009.45-331,511.74-132,287.72

Finding the Fourth Proportional to 221,009.45, 331,511.74 and 132,287.72

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Solution

The fourth proportional to 221,009.45, 331,511.74 and 132,287.72 is: 198,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,009.45 : 331,511.74 = 132,287.72 : x
  2. Step 2: Convert to fraction form
    221,009.45/331,511.74 = 132,287.72/x
  3. Step 3: Cross multiply
    221,009.45x = 331,511.74 × 132,287.72
  4. Step 4: Simplify right side
    221,009.45x = 43,854,930,249.55
  5. Step 5: Solve for x
    x = 43,854,930,249.55/221,009.45
  6. Step 6: Final answer
    x = 198,430.12

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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.