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Finding the Fourth Proportional to 247,915.44, 342,110.16 and 140,486.80

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Solution

The fourth proportional to 247,915.44, 342,110.16 and 140,486.80 is: 193,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,915.44 : 342,110.16 = 140,486.80 : x
  2. Step 2: Convert to fraction form
    247,915.44/342,110.16 = 140,486.80/x
  3. Step 3: Cross multiply
    247,915.44x = 342,110.16 × 140,486.80
  4. Step 4: Simplify right side
    247,915.44x = 48,061,961,625.89
  5. Step 5: Solve for x
    x = 48,061,961,625.89/247,915.44
  6. Step 6: Final answer
    x = 193,864.33

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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.