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Finding the Fourth Proportional to 225,892.66, 311,734.28 and 123,918.32

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Solution

The fourth proportional to 225,892.66, 311,734.28 and 123,918.32 is: 171,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,892.66 : 311,734.28 = 123,918.32 : x
  2. Step 2: Convert to fraction form
    225,892.66/311,734.28 = 123,918.32/x
  3. Step 3: Cross multiply
    225,892.66x = 311,734.28 × 123,918.32
  4. Step 4: Simplify right side
    225,892.66x = 38,629,587,428.10
  5. Step 5: Solve for x
    x = 38,629,587,428.10/225,892.66
  6. Step 6: Final answer
    x = 171,008.60

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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.