Home / 419,164.20-578,429.10-228,166.20

Finding the Fourth Proportional to 419,164.20, 578,429.10 and 228,166.20

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Solution

The fourth proportional to 419,164.20, 578,429.10 and 228,166.20 is: 314,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,164.20 : 578,429.10 = 228,166.20 : x
  2. Step 2: Convert to fraction form
    419,164.20/578,429.10 = 228,166.20/x
  3. Step 3: Cross multiply
    419,164.20x = 578,429.10 × 228,166.20
  4. Step 4: Simplify right side
    419,164.20x = 131,977,969,716.42
  5. Step 5: Solve for x
    x = 131,977,969,716.42/419,164.20
  6. Step 6: Final answer
    x = 314,859.83

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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.