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Finding the Fourth Proportional to 202,179.38, 279,007.54 and 112,755.38

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Solution

The fourth proportional to 202,179.38, 279,007.54 and 112,755.38 is: 155,602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,179.38 : 279,007.54 = 112,755.38 : x
  2. Step 2: Convert to fraction form
    202,179.38/279,007.54 = 112,755.38/x
  3. Step 3: Cross multiply
    202,179.38x = 279,007.54 × 112,755.38
  4. Step 4: Simplify right side
    202,179.38x = 31,459,599,518.64
  5. Step 5: Solve for x
    x = 31,459,599,518.64/202,179.38
  6. Step 6: Final answer
    x = 155,602.42

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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.