Home / 270,183.07-405,341.09-190,376.91

Finding the Fourth Proportional to 270,183.07, 405,341.09 and 190,376.91

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Solution

The fourth proportional to 270,183.07, 405,341.09 and 190,376.91 is: 285,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,183.07 : 405,341.09 = 190,376.91 : x
  2. Step 2: Convert to fraction form
    270,183.07/405,341.09 = 190,376.91/x
  3. Step 3: Cross multiply
    270,183.07x = 405,341.09 × 190,376.91
  4. Step 4: Simplify right side
    270,183.07x = 77,167,582,296.80
  5. Step 5: Solve for x
    x = 77,167,582,296.80/270,183.07
  6. Step 6: Final answer
    x = 285,612.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.