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Finding the Fourth Proportional to 331,550.72, 457,613.80 and 210,668.39

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Solution

The fourth proportional to 331,550.72, 457,613.80 and 210,668.39 is: 290,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,550.72 : 457,613.80 = 210,668.39 : x
  2. Step 2: Convert to fraction form
    331,550.72/457,613.80 = 210,668.39/x
  3. Step 3: Cross multiply
    331,550.72x = 457,613.80 × 210,668.39
  4. Step 4: Simplify right side
    331,550.72x = 96,404,765,148.18
  5. Step 5: Solve for x
    x = 96,404,765,148.18/331,550.72
  6. Step 6: Final answer
    x = 290,769.28

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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.