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Finding the Fourth Proportional to 202,628.14, 279,627.17 and 111,984.08

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Solution

The fourth proportional to 202,628.14, 279,627.17 and 111,984.08 is: 154,538.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,628.14 : 279,627.17 = 111,984.08 : x
  2. Step 2: Convert to fraction form
    202,628.14/279,627.17 = 111,984.08/x
  3. Step 3: Cross multiply
    202,628.14x = 279,627.17 × 111,984.08
  4. Step 4: Simplify right side
    202,628.14x = 31,313,792,131.54
  5. Step 5: Solve for x
    x = 31,313,792,131.54/202,628.14
  6. Step 6: Final answer
    x = 154,538.22

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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.