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Finding the Fourth Proportional to 252,084.76, 347,884.38 and 138,914.80

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Solution

The fourth proportional to 252,084.76, 347,884.38 and 138,914.80 is: 191,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,084.76 : 347,884.38 = 138,914.80 : x
  2. Step 2: Convert to fraction form
    252,084.76/347,884.38 = 138,914.80/x
  3. Step 3: Cross multiply
    252,084.76x = 347,884.38 × 138,914.80
  4. Step 4: Simplify right side
    252,084.76x = 48,326,289,070.82
  5. Step 5: Solve for x
    x = 48,326,289,070.82/252,084.76
  6. Step 6: Final answer
    x = 191,706.51

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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.