Home / 215,782.28-297,779.60-120,286.92

Finding the Fourth Proportional to 215,782.28, 297,779.60 and 120,286.92

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Solution

The fourth proportional to 215,782.28, 297,779.60 and 120,286.92 is: 165,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,782.28 : 297,779.60 = 120,286.92 : x
  2. Step 2: Convert to fraction form
    215,782.28/297,779.60 = 120,286.92/x
  3. Step 3: Cross multiply
    215,782.28x = 297,779.60 × 120,286.92
  4. Step 4: Simplify right side
    215,782.28x = 35,818,990,922.83
  5. Step 5: Solve for x
    x = 35,818,990,922.83/215,782.28
  6. Step 6: Final answer
    x = 165,995.98

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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.