Home / 220,511.11-304,305.33-125,017.80

Finding the Fourth Proportional to 220,511.11, 304,305.33 and 125,017.80

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Solution

The fourth proportional to 220,511.11, 304,305.33 and 125,017.80 is: 172,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,511.11 : 304,305.33 = 125,017.80 : x
  2. Step 2: Convert to fraction form
    220,511.11/304,305.33 = 125,017.80/x
  3. Step 3: Cross multiply
    220,511.11x = 304,305.33 × 125,017.80
  4. Step 4: Simplify right side
    220,511.11x = 38,043,584,428.51
  5. Step 5: Solve for x
    x = 38,043,584,428.51/220,511.11
  6. Step 6: Final answer
    x = 172,524.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.