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Finding the Fourth Proportional to 252,168.92, 347,990.87 and 137,447.55

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Solution

The fourth proportional to 252,168.92, 347,990.87 and 137,447.55 is: 189,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,168.92 : 347,990.87 = 137,447.55 : x
  2. Step 2: Convert to fraction form
    252,168.92/347,990.87 = 137,447.55/x
  3. Step 3: Cross multiply
    252,168.92x = 347,990.87 × 137,447.55
  4. Step 4: Simplify right side
    252,168.92x = 47,830,492,503.87
  5. Step 5: Solve for x
    x = 47,830,492,503.87/252,168.92
  6. Step 6: Final answer
    x = 189,676.40

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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.