Home / 419,160.66-578,441.78-228,175.49

Finding the Fourth Proportional to 419,160.66, 578,441.78 and 228,175.49

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Solution

The fourth proportional to 419,160.66, 578,441.78 and 228,175.49 is: 314,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,160.66 : 578,441.78 = 228,175.49 : x
  2. Step 2: Convert to fraction form
    419,160.66/578,441.78 = 228,175.49/x
  3. Step 3: Cross multiply
    419,160.66x = 578,441.78 × 228,175.49
  4. Step 4: Simplify right side
    419,160.66x = 131,986,232,554.89
  5. Step 5: Solve for x
    x = 131,986,232,554.89/419,160.66
  6. Step 6: Final answer
    x = 314,882.20

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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.