Home / 312,201.23-430,838.22-168,961.40

Finding the Fourth Proportional to 312,201.23, 430,838.22 and 168,961.40

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Solution

The fourth proportional to 312,201.23, 430,838.22 and 168,961.40 is: 233,167.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,201.23 : 430,838.22 = 168,961.40 : x
  2. Step 2: Convert to fraction form
    312,201.23/430,838.22 = 168,961.40/x
  3. Step 3: Cross multiply
    312,201.23x = 430,838.22 × 168,961.40
  4. Step 4: Simplify right side
    312,201.23x = 72,795,028,824.71
  5. Step 5: Solve for x
    x = 72,795,028,824.71/312,201.23
  6. Step 6: Final answer
    x = 233,167.01

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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.