Home / 221,122.40-331,680.54-132,400.40

Finding the Fourth Proportional to 221,122.40, 331,680.54 and 132,400.40

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Solution

The fourth proportional to 221,122.40, 331,680.54 and 132,400.40 is: 198,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,122.40 : 331,680.54 = 132,400.40 : x
  2. Step 2: Convert to fraction form
    221,122.40/331,680.54 = 132,400.40/x
  3. Step 3: Cross multiply
    221,122.40x = 331,680.54 × 132,400.40
  4. Step 4: Simplify right side
    221,122.40x = 43,914,636,168.22
  5. Step 5: Solve for x
    x = 43,914,636,168.22/221,122.40
  6. Step 6: Final answer
    x = 198,598.77

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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.