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Finding the Fourth Proportional to 247,907.58, 342,105.36 and 140,512.32

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Solution

The fourth proportional to 247,907.58, 342,105.36 and 140,512.32 is: 193,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,907.58 : 342,105.36 = 140,512.32 : x
  2. Step 2: Convert to fraction form
    247,907.58/342,105.36 = 140,512.32/x
  3. Step 3: Cross multiply
    247,907.58x = 342,105.36 × 140,512.32
  4. Step 4: Simplify right side
    247,907.58x = 48,070,017,818.04
  5. Step 5: Solve for x
    x = 48,070,017,818.04/247,907.58
  6. Step 6: Final answer
    x = 193,902.98

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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.