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Finding the Fourth Proportional to 253,736.55, 350,155.71 and 140,559.30

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Solution

The fourth proportional to 253,736.55, 350,155.71 and 140,559.30 is: 193,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,736.55 : 350,155.71 = 140,559.30 : x
  2. Step 2: Convert to fraction form
    253,736.55/350,155.71 = 140,559.30/x
  3. Step 3: Cross multiply
    253,736.55x = 350,155.71 × 140,559.30
  4. Step 4: Simplify right side
    253,736.55x = 49,217,641,488.60
  5. Step 5: Solve for x
    x = 49,217,641,488.60/253,736.55
  6. Step 6: Final answer
    x = 193,971.43

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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.