Home / 324,930.42-487,404-154,112.22

Finding the Fourth Proportional to 324,930.42, 487,404 and 154,112.22

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Solution

The fourth proportional to 324,930.42, 487,404 and 154,112.22 is: 231,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,930.42 : 487,404 = 154,112.22 : x
  2. Step 2: Convert to fraction form
    324,930.42/487,404 = 154,112.22/x
  3. Step 3: Cross multiply
    324,930.42x = 487,404 × 154,112.22
  4. Step 4: Simplify right side
    324,930.42x = 75,114,912,476.88
  5. Step 5: Solve for x
    x = 75,114,912,476.88/324,930.42
  6. Step 6: Final answer
    x = 231,172.30

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1.5x scale

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.