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Finding the Fourth Proportional to 248,833.56, 343,380.06 and 139,934.76

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Solution

The fourth proportional to 248,833.56, 343,380.06 and 139,934.76 is: 193,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,833.56 : 343,380.06 = 139,934.76 : x
  2. Step 2: Convert to fraction form
    248,833.56/343,380.06 = 139,934.76/x
  3. Step 3: Cross multiply
    248,833.56x = 343,380.06 × 139,934.76
  4. Step 4: Simplify right side
    248,833.56x = 48,050,806,284.89
  5. Step 5: Solve for x
    x = 48,050,806,284.89/248,833.56
  6. Step 6: Final answer
    x = 193,104.20

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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.