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Finding the Fourth Proportional to 248,984.68, 343,596.72 and 135,805

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Solution

The fourth proportional to 248,984.68, 343,596.72 and 135,805 is: 187,409.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,984.68 : 343,596.72 = 135,805 : x
  2. Step 2: Convert to fraction form
    248,984.68/343,596.72 = 135,805/x
  3. Step 3: Cross multiply
    248,984.68x = 343,596.72 × 135,805
  4. Step 4: Simplify right side
    248,984.68x = 46,662,152,559.60
  5. Step 5: Solve for x
    x = 46,662,152,559.60/248,984.68
  6. Step 6: Final answer
    x = 187,409.73

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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.