Home / 291,257.15-401,727.83-194,412.18

Finding the Fourth Proportional to 291,257.15, 401,727.83 and 194,412.18

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Solution

The fourth proportional to 291,257.15, 401,727.83 and 194,412.18 is: 268,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,257.15 : 401,727.83 = 194,412.18 : x
  2. Step 2: Convert to fraction form
    291,257.15/401,727.83 = 194,412.18/x
  3. Step 3: Cross multiply
    291,257.15x = 401,727.83 × 194,412.18
  4. Step 4: Simplify right side
    291,257.15x = 78,100,783,683.00
  5. Step 5: Solve for x
    x = 78,100,783,683.00/291,257.15
  6. Step 6: Final answer
    x = 268,150.61

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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.