Home / 215,767.80-297,772.38-120,274.20

Finding the Fourth Proportional to 215,767.80, 297,772.38 and 120,274.20

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Solution

The fourth proportional to 215,767.80, 297,772.38 and 120,274.20 is: 165,985.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,767.80 : 297,772.38 = 120,274.20 : x
  2. Step 2: Convert to fraction form
    215,767.80/297,772.38 = 120,274.20/x
  3. Step 3: Cross multiply
    215,767.80x = 297,772.38 × 120,274.20
  4. Step 4: Simplify right side
    215,767.80x = 35,814,334,786.60
  5. Step 5: Solve for x
    x = 35,814,334,786.60/215,767.80
  6. Step 6: Final answer
    x = 165,985.54

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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.