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Finding the Fourth Proportional to 254,912.52, 382,368.75 and 121,387.94

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Solution

The fourth proportional to 254,912.52, 382,368.75 and 121,387.94 is: 182,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,912.52 : 382,368.75 = 121,387.94 : x
  2. Step 2: Convert to fraction form
    254,912.52/382,368.75 = 121,387.94/x
  3. Step 3: Cross multiply
    254,912.52x = 382,368.75 × 121,387.94
  4. Step 4: Simplify right side
    254,912.52x = 46,414,954,882.88
  5. Step 5: Solve for x
    x = 46,414,954,882.88/254,912.52
  6. Step 6: Final answer
    x = 182,081.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.