Home / 221,258.35-331,889.28-88,172.47

Finding the Fourth Proportional to 221,258.35, 331,889.28 and 88,172.47

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Solution

The fourth proportional to 221,258.35, 331,889.28 and 88,172.47 is: 132,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,258.35 : 331,889.28 = 88,172.47 : x
  2. Step 2: Convert to fraction form
    221,258.35/331,889.28 = 88,172.47/x
  3. Step 3: Cross multiply
    221,258.35x = 331,889.28 × 88,172.47
  4. Step 4: Simplify right side
    221,258.35x = 29,263,497,584.12
  5. Step 5: Solve for x
    x = 29,263,497,584.12/221,258.35
  6. Step 6: Final answer
    x = 132,259.40

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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.