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Finding the Fourth Proportional to 324,996.90, 487,556.41 and 147,516.39

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Solution

The fourth proportional to 324,996.90, 487,556.41 and 147,516.39 is: 221,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,996.90 : 487,556.41 = 147,516.39 : x
  2. Step 2: Convert to fraction form
    324,996.90/487,556.41 = 147,516.39/x
  3. Step 3: Cross multiply
    324,996.90x = 487,556.41 × 147,516.39
  4. Step 4: Simplify right side
    324,996.90x = 71,922,558,349.20
  5. Step 5: Solve for x
    x = 71,922,558,349.20/324,996.90
  6. Step 6: Final answer
    x = 221,302.29

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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.