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Finding the Fourth Proportional to 238,906.79, 329,691.44 and 131,476.81

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Solution

The fourth proportional to 238,906.79, 329,691.44 and 131,476.81 is: 181,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,906.79 : 329,691.44 = 131,476.81 : x
  2. Step 2: Convert to fraction form
    238,906.79/329,691.44 = 131,476.81/x
  3. Step 3: Cross multiply
    238,906.79x = 329,691.44 × 131,476.81
  4. Step 4: Simplify right side
    238,906.79x = 43,346,778,815.51
  5. Step 5: Solve for x
    x = 43,346,778,815.51/238,906.79
  6. Step 6: Final answer
    x = 181,438.04

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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.