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Finding the Fourth Proportional to 248,931, 343,524.78 and 135,754.56

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Solution

The fourth proportional to 248,931, 343,524.78 and 135,754.56 is: 187,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,931 : 343,524.78 = 135,754.56 : x
  2. Step 2: Convert to fraction form
    248,931/343,524.78 = 135,754.56/x
  3. Step 3: Cross multiply
    248,931x = 343,524.78 × 135,754.56
  4. Step 4: Simplify right side
    248,931x = 46,635,055,358.00
  5. Step 5: Solve for x
    x = 46,635,055,358.00/248,931
  6. Step 6: Final answer
    x = 187,341.29

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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.