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Finding the Fourth Proportional to 238,456.74, 329,078.39 and 131,030.63

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Solution

The fourth proportional to 238,456.74, 329,078.39 and 131,030.63 is: 180,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,456.74 : 329,078.39 = 131,030.63 : x
  2. Step 2: Convert to fraction form
    238,456.74/329,078.39 = 131,030.63/x
  3. Step 3: Cross multiply
    238,456.74x = 329,078.39 × 131,030.63
  4. Step 4: Simplify right side
    238,456.74x = 43,119,346,460.54
  5. Step 5: Solve for x
    x = 43,119,346,460.54/238,456.74
  6. Step 6: Final answer
    x = 180,826.70

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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.