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Finding the Fourth Proportional to 250,452.88, 345,660.40 and 154,990.32

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Solution

The fourth proportional to 250,452.88, 345,660.40 and 154,990.32 is: 213,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,452.88 : 345,660.40 = 154,990.32 : x
  2. Step 2: Convert to fraction form
    250,452.88/345,660.40 = 154,990.32/x
  3. Step 3: Cross multiply
    250,452.88x = 345,660.40 × 154,990.32
  4. Step 4: Simplify right side
    250,452.88x = 53,574,016,007.33
  5. Step 5: Solve for x
    x = 53,574,016,007.33/250,452.88
  6. Step 6: Final answer
    x = 213,908.56

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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.