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Finding the Fourth Proportional to 250,662.76, 345,914.49 and 137,485.51

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Solution

The fourth proportional to 250,662.76, 345,914.49 and 137,485.51 is: 189,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,662.76 : 345,914.49 = 137,485.51 : x
  2. Step 2: Convert to fraction form
    250,662.76/345,914.49 = 137,485.51/x
  3. Step 3: Cross multiply
    250,662.76x = 345,914.49 × 137,485.51
  4. Step 4: Simplify right side
    250,662.76x = 47,558,230,074.04
  5. Step 5: Solve for x
    x = 47,558,230,074.04/250,662.76
  6. Step 6: Final answer
    x = 189,729.94

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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.