Home / 419,155.13-578,434.14-228,169.95

Finding the Fourth Proportional to 419,155.13, 578,434.14 and 228,169.95

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Solution

The fourth proportional to 419,155.13, 578,434.14 and 228,169.95 is: 314,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,155.13 : 578,434.14 = 228,169.95 : x
  2. Step 2: Convert to fraction form
    419,155.13/578,434.14 = 228,169.95/x
  3. Step 3: Cross multiply
    419,155.13x = 578,434.14 × 228,169.95
  4. Step 4: Simplify right side
    419,155.13x = 131,981,288,802.09
  5. Step 5: Solve for x
    x = 131,981,288,802.09/419,155.13
  6. Step 6: Final answer
    x = 314,874.57

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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.