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Finding the Fourth Proportional to 248,640.59, 343,124.05 and 135,463.34

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Solution

The fourth proportional to 248,640.59, 343,124.05 and 135,463.34 is: 186,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,640.59 : 343,124.05 = 135,463.34 : x
  2. Step 2: Convert to fraction form
    248,640.59/343,124.05 = 135,463.34/x
  3. Step 3: Cross multiply
    248,640.59x = 343,124.05 × 135,463.34
  4. Step 4: Simplify right side
    248,640.59x = 46,480,729,847.33
  5. Step 5: Solve for x
    x = 46,480,729,847.33/248,640.59
  6. Step 6: Final answer
    x = 186,939.43

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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.