Home / 551,516.96-827,276.09-172,439.71

Finding the Fourth Proportional to 551,516.96, 827,276.09 and 172,439.71

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Solution

The fourth proportional to 551,516.96, 827,276.09 and 172,439.71 is: 258,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,516.96 : 827,276.09 = 172,439.71 : x
  2. Step 2: Convert to fraction form
    551,516.96/827,276.09 = 172,439.71/x
  3. Step 3: Cross multiply
    551,516.96x = 827,276.09 × 172,439.71
  4. Step 4: Simplify right side
    551,516.96x = 142,655,246,119.15
  5. Step 5: Solve for x
    x = 142,655,246,119.15/551,516.96
  6. Step 6: Final answer
    x = 258,659.76

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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.