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Finding the Fourth Proportional to 247,310.31, 341,282.67 and 139,880.22

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Solution

The fourth proportional to 247,310.31, 341,282.67 and 139,880.22 is: 193,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,310.31 : 341,282.67 = 139,880.22 : x
  2. Step 2: Convert to fraction form
    247,310.31/341,282.67 = 139,880.22/x
  3. Step 3: Cross multiply
    247,310.31x = 341,282.67 × 139,880.22
  4. Step 4: Simplify right side
    247,310.31x = 47,738,693,157.43
  5. Step 5: Solve for x
    x = 47,738,693,157.43/247,310.31
  6. Step 6: Final answer
    x = 193,031.55

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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.