Home / 311,587.46-429,919.36-196,727.92

Finding the Fourth Proportional to 311,587.46, 429,919.36 and 196,727.92

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Solution

The fourth proportional to 311,587.46, 429,919.36 and 196,727.92 is: 271,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,587.46 : 429,919.36 = 196,727.92 : x
  2. Step 2: Convert to fraction form
    311,587.46/429,919.36 = 196,727.92/x
  3. Step 3: Cross multiply
    311,587.46x = 429,919.36 × 196,727.92
  4. Step 4: Simplify right side
    311,587.46x = 84,577,139,893.91
  5. Step 5: Solve for x
    x = 84,577,139,893.91/311,587.46
  6. Step 6: Final answer
    x = 271,439.49

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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.