Home / 419,155.88-578,435.18-228,170.70

Finding the Fourth Proportional to 419,155.88, 578,435.18 and 228,170.70

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Solution

The fourth proportional to 419,155.88, 578,435.18 and 228,170.70 is: 314,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,155.88 : 578,435.18 = 228,170.70 : x
  2. Step 2: Convert to fraction form
    419,155.88/578,435.18 = 228,170.70/x
  3. Step 3: Cross multiply
    419,155.88x = 578,435.18 × 228,170.70
  4. Step 4: Simplify right side
    419,155.88x = 131,981,958,784.37
  5. Step 5: Solve for x
    x = 131,981,958,784.37/419,155.88
  6. Step 6: Final answer
    x = 314,875.60

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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.