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Finding the Fourth Proportional to 238,628.66, 329,299.14 and 131,197.86

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Solution

The fourth proportional to 238,628.66, 329,299.14 and 131,197.86 is: 181,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,628.66 : 329,299.14 = 131,197.86 : x
  2. Step 2: Convert to fraction form
    238,628.66/329,299.14 = 131,197.86/x
  3. Step 3: Cross multiply
    238,628.66x = 329,299.14 × 131,197.86
  4. Step 4: Simplify right side
    238,628.66x = 43,203,342,467.84
  5. Step 5: Solve for x
    x = 43,203,342,467.84/238,628.66
  6. Step 6: Final answer
    x = 181,048.42

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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.