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Finding the Fourth Proportional to 300,649.16, 414,930.85 and 173,329.31

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Solution

The fourth proportional to 300,649.16, 414,930.85 and 173,329.31 is: 239,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,649.16 : 414,930.85 = 173,329.31 : x
  2. Step 2: Convert to fraction form
    300,649.16/414,930.85 = 173,329.31/x
  3. Step 3: Cross multiply
    300,649.16x = 414,930.85 × 173,329.31
  4. Step 4: Simplify right side
    300,649.16x = 71,919,678,532.22
  5. Step 5: Solve for x
    x = 71,919,678,532.22/300,649.16
  6. Step 6: Final answer
    x = 239,214.63

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1.5x scale

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.