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Finding the Fourth Proportional to 250,441.47, 345,653.63 and 189,910.07

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Solution

The fourth proportional to 250,441.47, 345,653.63 and 189,910.07 is: 262,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,441.47 : 345,653.63 = 189,910.07 : x
  2. Step 2: Convert to fraction form
    250,441.47/345,653.63 = 189,910.07/x
  3. Step 3: Cross multiply
    250,441.47x = 345,653.63 × 189,910.07
  4. Step 4: Simplify right side
    250,441.47x = 65,643,104,399.60
  5. Step 5: Solve for x
    x = 65,643,104,399.60/250,441.47
  6. Step 6: Final answer
    x = 262,109.56

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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.