Home / 399,435.35-551,234.38-236,231.75

Finding the Fourth Proportional to 399,435.35, 551,234.38 and 236,231.75

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Solution

The fourth proportional to 399,435.35, 551,234.38 and 236,231.75 is: 326,007.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,435.35 : 551,234.38 = 236,231.75 : x
  2. Step 2: Convert to fraction form
    399,435.35/551,234.38 = 236,231.75/x
  3. Step 3: Cross multiply
    399,435.35x = 551,234.38 × 236,231.75
  4. Step 4: Simplify right side
    399,435.35x = 130,219,064,609.98
  5. Step 5: Solve for x
    x = 130,219,064,609.98/399,435.35
  6. Step 6: Final answer
    x = 326,007.87

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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.