Home / 215,777.24-323,759.21-115,820.70

Finding the Fourth Proportional to 215,777.24, 323,759.21 and 115,820.70

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Solution

The fourth proportional to 215,777.24, 323,759.21 and 115,820.70 is: 173,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,777.24 : 323,759.21 = 115,820.70 : x
  2. Step 2: Convert to fraction form
    215,777.24/323,759.21 = 115,820.70/x
  3. Step 3: Cross multiply
    215,777.24x = 323,759.21 × 115,820.70
  4. Step 4: Simplify right side
    215,777.24x = 37,498,018,623.20
  5. Step 5: Solve for x
    x = 37,498,018,623.20/215,777.24
  6. Step 6: Final answer
    x = 173,781.16

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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.