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Finding the Fourth Proportional to 220,185.20, 330,277.80 and 53,973.20

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Solution

The fourth proportional to 220,185.20, 330,277.80 and 53,973.20 is: 80,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,185.20 : 330,277.80 = 53,973.20 : x
  2. Step 2: Convert to fraction form
    220,185.20/330,277.80 = 53,973.20/x
  3. Step 3: Cross multiply
    220,185.20x = 330,277.80 × 53,973.20
  4. Step 4: Simplify right side
    220,185.20x = 17,826,148,103.57
  5. Step 5: Solve for x
    x = 17,826,148,103.57/220,185.20
  6. Step 6: Final answer
    x = 80,959.79

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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.