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Finding the Fourth Proportional to 248,995.70, 343,614.39 and 135,820.34

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Solution

The fourth proportional to 248,995.70, 343,614.39 and 135,820.34 is: 187,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,995.70 : 343,614.39 = 135,820.34 : x
  2. Step 2: Convert to fraction form
    248,995.70/343,614.39 = 135,820.34/x
  3. Step 3: Cross multiply
    248,995.70x = 343,614.39 × 135,820.34
  4. Step 4: Simplify right side
    248,995.70x = 46,669,823,278.69
  5. Step 5: Solve for x
    x = 46,669,823,278.69/248,995.70
  6. Step 6: Final answer
    x = 187,432.25

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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.