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Finding the Fourth Proportional to 349,081.70, 481,784.85 and 213,193.80

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Solution

The fourth proportional to 349,081.70, 481,784.85 and 213,193.80 is: 294,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,081.70 : 481,784.85 = 213,193.80 : x
  2. Step 2: Convert to fraction form
    349,081.70/481,784.85 = 213,193.80/x
  3. Step 3: Cross multiply
    349,081.70x = 481,784.85 × 213,193.80
  4. Step 4: Simplify right side
    349,081.70x = 102,713,542,953.93
  5. Step 5: Solve for x
    x = 102,713,542,953.93/349,081.70
  6. Step 6: Final answer
    x = 294,239.27

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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.