Home / 419,158.14-578,438.25-228,172.92

Finding the Fourth Proportional to 419,158.14, 578,438.25 and 228,172.92

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Solution

The fourth proportional to 419,158.14, 578,438.25 and 228,172.92 is: 314,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,158.14 : 578,438.25 = 228,172.92 : x
  2. Step 2: Convert to fraction form
    419,158.14/578,438.25 = 228,172.92/x
  3. Step 3: Cross multiply
    419,158.14x = 578,438.25 × 228,172.92
  4. Step 4: Simplify right side
    419,158.14x = 131,983,944,542.19
  5. Step 5: Solve for x
    x = 131,983,944,542.19/419,158.14
  6. Step 6: Final answer
    x = 314,878.64

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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.