Home / 215,311.72-296,822.20-151,451.32

Finding the Fourth Proportional to 215,311.72, 296,822.20 and 151,451.32

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Solution

The fourth proportional to 215,311.72, 296,822.20 and 151,451.32 is: 208,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,311.72 : 296,822.20 = 151,451.32 : x
  2. Step 2: Convert to fraction form
    215,311.72/296,822.20 = 151,451.32/x
  3. Step 3: Cross multiply
    215,311.72x = 296,822.20 × 151,451.32
  4. Step 4: Simplify right side
    215,311.72x = 44,954,113,995.30
  5. Step 5: Solve for x
    x = 44,954,113,995.30/215,311.72
  6. Step 6: Final answer
    x = 208,786.19

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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.