Home / 399,511.25-551,341.74-229,745.39

Finding the Fourth Proportional to 399,511.25, 551,341.74 and 229,745.39

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Solution

The fourth proportional to 399,511.25, 551,341.74 and 229,745.39 is: 317,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,511.25 : 551,341.74 = 229,745.39 : x
  2. Step 2: Convert to fraction form
    399,511.25/551,341.74 = 229,745.39/x
  3. Step 3: Cross multiply
    399,511.25x = 551,341.74 × 229,745.39
  4. Step 4: Simplify right side
    399,511.25x = 126,668,223,079.58
  5. Step 5: Solve for x
    x = 126,668,223,079.58/399,511.25
  6. Step 6: Final answer
    x = 317,057.96

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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.