Home / 247,942.89-342,154-140,522.85

Finding the Fourth Proportional to 247,942.89, 342,154 and 140,522.85

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Solution

The fourth proportional to 247,942.89, 342,154 and 140,522.85 is: 193,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,942.89 : 342,154 = 140,522.85 : x
  2. Step 2: Convert to fraction form
    247,942.89/342,154 = 140,522.85/x
  3. Step 3: Cross multiply
    247,942.89x = 342,154 × 140,522.85
  4. Step 4: Simplify right side
    247,942.89x = 48,080,455,218.90
  5. Step 5: Solve for x
    x = 48,080,455,218.90/247,942.89
  6. Step 6: Final answer
    x = 193,917.46

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1.5x scale

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.