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Finding the Fourth Proportional to 181,300.80, 250,183.20 and 100,722.24

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Solution

The fourth proportional to 181,300.80, 250,183.20 and 100,722.24 is: 138,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,300.80 : 250,183.20 = 100,722.24 : x
  2. Step 2: Convert to fraction form
    181,300.80/250,183.20 = 100,722.24/x
  3. Step 3: Cross multiply
    181,300.80x = 250,183.20 × 100,722.24
  4. Step 4: Simplify right side
    181,300.80x = 25,199,012,314.37
  5. Step 5: Solve for x
    x = 25,199,012,314.37/181,300.80
  6. Step 6: Final answer
    x = 138,990.08

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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.