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Finding the Fourth Proportional to 235,824.95, 325,548.11 and 138,998.30

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Solution

The fourth proportional to 235,824.95, 325,548.11 and 138,998.30 is: 191,882.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,824.95 : 325,548.11 = 138,998.30 : x
  2. Step 2: Convert to fraction form
    235,824.95/325,548.11 = 138,998.30/x
  3. Step 3: Cross multiply
    235,824.95x = 325,548.11 × 138,998.30
  4. Step 4: Simplify right side
    235,824.95x = 45,250,632,577.97
  5. Step 5: Solve for x
    x = 45,250,632,577.97/235,824.95
  6. Step 6: Final answer
    x = 191,882.29

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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.