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Finding the Fourth Proportional to 247,903.42, 342,093.62 and 140,474.74

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Solution

The fourth proportional to 247,903.42, 342,093.62 and 140,474.74 is: 193,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,903.42 : 342,093.62 = 140,474.74 : x
  2. Step 2: Convert to fraction form
    247,903.42/342,093.62 = 140,474.74/x
  3. Step 3: Cross multiply
    247,903.42x = 342,093.62 × 140,474.74
  4. Step 4: Simplify right side
    247,903.42x = 48,055,512,325.16
  5. Step 5: Solve for x
    x = 48,055,512,325.16/247,903.42
  6. Step 6: Final answer
    x = 193,847.72

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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.