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Finding the Fourth Proportional to 248,853.96, 343,422.18 and 135,678.60

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Solution

The fourth proportional to 248,853.96, 343,422.18 and 135,678.60 is: 187,238.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,853.96 : 343,422.18 = 135,678.60 : x
  2. Step 2: Convert to fraction form
    248,853.96/343,422.18 = 135,678.60/x
  3. Step 3: Cross multiply
    248,853.96x = 343,422.18 × 135,678.60
  4. Step 4: Simplify right side
    248,853.96x = 46,595,040,591.35
  5. Step 5: Solve for x
    x = 46,595,040,591.35/248,853.96
  6. Step 6: Final answer
    x = 187,238.49

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1.5x scale

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.