Home / 258,619.30-356,889.04-149,728.23

Finding the Fourth Proportional to 258,619.30, 356,889.04 and 149,728.23

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Solution

The fourth proportional to 258,619.30, 356,889.04 and 149,728.23 is: 206,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,619.30 : 356,889.04 = 149,728.23 : x
  2. Step 2: Convert to fraction form
    258,619.30/356,889.04 = 149,728.23/x
  3. Step 3: Cross multiply
    258,619.30x = 356,889.04 × 149,728.23
  4. Step 4: Simplify right side
    258,619.30x = 53,436,364,265.60
  5. Step 5: Solve for x
    x = 53,436,364,265.60/258,619.30
  6. Step 6: Final answer
    x = 206,621.72

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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.