Home / 312,183.15-430,812.69-168,943.20

Finding the Fourth Proportional to 312,183.15, 430,812.69 and 168,943.20

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Solution

The fourth proportional to 312,183.15, 430,812.69 and 168,943.20 is: 233,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,183.15 : 430,812.69 = 168,943.20 : x
  2. Step 2: Convert to fraction form
    312,183.15/430,812.69 = 168,943.20/x
  3. Step 3: Cross multiply
    312,183.15x = 430,812.69 × 168,943.20
  4. Step 4: Simplify right side
    312,183.15x = 72,782,874,449.21
  5. Step 5: Solve for x
    x = 72,782,874,449.21/312,183.15
  6. Step 6: Final answer
    x = 233,141.59

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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.