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Finding the Fourth Proportional to 248,760, 343,288.80 and 135,583.02

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Solution

The fourth proportional to 248,760, 343,288.80 and 135,583.02 is: 187,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,760 : 343,288.80 = 135,583.02 : x
  2. Step 2: Convert to fraction form
    248,760/343,288.80 = 135,583.02/x
  3. Step 3: Cross multiply
    248,760x = 343,288.80 × 135,583.02
  4. Step 4: Simplify right side
    248,760x = 46,544,132,236.18
  5. Step 5: Solve for x
    x = 46,544,132,236.18/248,760
  6. Step 6: Final answer
    x = 187,104.57

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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.