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Finding the Fourth Proportional to 248,970.95, 343,584 and 135,793.70

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Solution

The fourth proportional to 248,970.95, 343,584 and 135,793.70 is: 187,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,970.95 : 343,584 = 135,793.70 : x
  2. Step 2: Convert to fraction form
    248,970.95/343,584 = 135,793.70/x
  3. Step 3: Cross multiply
    248,970.95x = 343,584 × 135,793.70
  4. Step 4: Simplify right side
    248,970.95x = 46,656,540,902.88
  5. Step 5: Solve for x
    x = 46,656,540,902.88/248,970.95
  6. Step 6: Final answer
    x = 187,397.53

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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.