Home / 399,556.08-551,404.12-229,790.32

Finding the Fourth Proportional to 399,556.08, 551,404.12 and 229,790.32

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Solution

The fourth proportional to 399,556.08, 551,404.12 and 229,790.32 is: 317,120.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,556.08 : 551,404.12 = 229,790.32 : x
  2. Step 2: Convert to fraction form
    399,556.08/551,404.12 = 229,790.32/x
  3. Step 3: Cross multiply
    399,556.08x = 551,404.12 × 229,790.32
  4. Step 4: Simplify right side
    399,556.08x = 126,707,329,184.12
  5. Step 5: Solve for x
    x = 126,707,329,184.12/399,556.08
  6. Step 6: Final answer
    x = 317,120.26

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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.