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Finding the Fourth Proportional to 248,995.41, 343,614.75 and 135,820.59

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Solution

The fourth proportional to 248,995.41, 343,614.75 and 135,820.59 is: 187,433.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,995.41 : 343,614.75 = 135,820.59 : x
  2. Step 2: Convert to fraction form
    248,995.41/343,614.75 = 135,820.59/x
  3. Step 3: Cross multiply
    248,995.41x = 343,614.75 × 135,820.59
  4. Step 4: Simplify right side
    248,995.41x = 46,669,958,587.03
  5. Step 5: Solve for x
    x = 46,669,958,587.03/248,995.41
  6. Step 6: Final answer
    x = 187,433.01

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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.