Home / 418,145.06-627,258.96-133,764.18

Finding the Fourth Proportional to 418,145.06, 627,258.96 and 133,764.18

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Solution

The fourth proportional to 418,145.06, 627,258.96 and 133,764.18 is: 200,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,145.06 : 627,258.96 = 133,764.18 : x
  2. Step 2: Convert to fraction form
    418,145.06/627,258.96 = 133,764.18/x
  3. Step 3: Cross multiply
    418,145.06x = 627,258.96 × 133,764.18
  4. Step 4: Simplify right side
    418,145.06x = 83,904,780,432.05
  5. Step 5: Solve for x
    x = 83,904,780,432.05/418,145.06
  6. Step 6: Final answer
    x = 200,659.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.