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Finding the Fourth Proportional to 248,952.96, 343,557.72 and 135,777.60

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Solution

The fourth proportional to 248,952.96, 343,557.72 and 135,777.60 is: 187,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,952.96 : 343,557.72 = 135,777.60 : x
  2. Step 2: Convert to fraction form
    248,952.96/343,557.72 = 135,777.60/x
  3. Step 3: Cross multiply
    248,952.96x = 343,557.72 × 135,777.60
  4. Step 4: Simplify right side
    248,952.96x = 46,647,442,683.07
  5. Step 5: Solve for x
    x = 46,647,442,683.07/248,952.96
  6. Step 6: Final answer
    x = 187,374.53

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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.