Home / 247,905.43-342,108.56-140,495.78

Finding the Fourth Proportional to 247,905.43, 342,108.56 and 140,495.78

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Solution

The fourth proportional to 247,905.43, 342,108.56 and 140,495.78 is: 193,883.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,905.43 : 342,108.56 = 140,495.78 : x
  2. Step 2: Convert to fraction form
    247,905.43/342,108.56 = 140,495.78/x
  3. Step 3: Cross multiply
    247,905.43x = 342,108.56 × 140,495.78
  4. Step 4: Simplify right side
    247,905.43x = 48,064,810,188.39
  5. Step 5: Solve for x
    x = 48,064,810,188.39/247,905.43
  6. Step 6: Final answer
    x = 193,883.65

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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.