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Finding the Fourth Proportional to 248,754, 343,280.22 and 135,576.75

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Solution

The fourth proportional to 248,754, 343,280.22 and 135,576.75 is: 187,095.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,754 : 343,280.22 = 135,576.75 : x
  2. Step 2: Convert to fraction form
    248,754/343,280.22 = 135,576.75/x
  3. Step 3: Cross multiply
    248,754x = 343,280.22 × 135,576.75
  4. Step 4: Simplify right side
    248,754x = 46,540,816,566.89
  5. Step 5: Solve for x
    x = 46,540,816,566.89/248,754
  6. Step 6: Final answer
    x = 187,095.75

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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.