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Finding the Fourth Proportional to 238,987.82, 329,807.34 and 137,029.88

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Solution

The fourth proportional to 238,987.82, 329,807.34 and 137,029.88 is: 189,103.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,987.82 : 329,807.34 = 137,029.88 : x
  2. Step 2: Convert to fraction form
    238,987.82/329,807.34 = 137,029.88/x
  3. Step 3: Cross multiply
    238,987.82x = 329,807.34 × 137,029.88
  4. Step 4: Simplify right side
    238,987.82x = 45,193,458,574.28
  5. Step 5: Solve for x
    x = 45,193,458,574.28/238,987.82
  6. Step 6: Final answer
    x = 189,103.61

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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.