Home / 215,727.68-297,705.76-120,240.56

Finding the Fourth Proportional to 215,727.68, 297,705.76 and 120,240.56

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Solution

The fourth proportional to 215,727.68, 297,705.76 and 120,240.56 is: 165,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,727.68 : 297,705.76 = 120,240.56 : x
  2. Step 2: Convert to fraction form
    215,727.68/297,705.76 = 120,240.56/x
  3. Step 3: Cross multiply
    215,727.68x = 297,705.76 × 120,240.56
  4. Step 4: Simplify right side
    215,727.68x = 35,796,307,297.63
  5. Step 5: Solve for x
    x = 35,796,307,297.63/215,727.68
  6. Step 6: Final answer
    x = 165,932.84

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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.