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Finding the Fourth Proportional to 238,703.28, 329,403.96 and 131,273.28

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Solution

The fourth proportional to 238,703.28, 329,403.96 and 131,273.28 is: 181,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,703.28 : 329,403.96 = 131,273.28 : x
  2. Step 2: Convert to fraction form
    238,703.28/329,403.96 = 131,273.28/x
  3. Step 3: Cross multiply
    238,703.28x = 329,403.96 × 131,273.28
  4. Step 4: Simplify right side
    238,703.28x = 43,241,938,274.19
  5. Step 5: Solve for x
    x = 43,241,938,274.19/238,703.28
  6. Step 6: Final answer
    x = 181,153.52

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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.