Home / 221,106.30-331,465.05-132,395.10

Finding the Fourth Proportional to 221,106.30, 331,465.05 and 132,395.10

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Solution

The fourth proportional to 221,106.30, 331,465.05 and 132,395.10 is: 198,476.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,106.30 : 331,465.05 = 132,395.10 : x
  2. Step 2: Convert to fraction form
    221,106.30/331,465.05 = 132,395.10/x
  3. Step 3: Cross multiply
    221,106.30x = 331,465.05 × 132,395.10
  4. Step 4: Simplify right side
    221,106.30x = 43,884,348,441.26
  5. Step 5: Solve for x
    x = 43,884,348,441.26/221,106.30
  6. Step 6: Final answer
    x = 198,476.25

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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.