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Finding the Fourth Proportional to 228,870.84, 343,221.84 and 79,072.68

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Solution

The fourth proportional to 228,870.84, 343,221.84 and 79,072.68 is: 118,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,870.84 : 343,221.84 = 79,072.68 : x
  2. Step 2: Convert to fraction form
    228,870.84/343,221.84 = 79,072.68/x
  3. Step 3: Cross multiply
    228,870.84x = 343,221.84 × 79,072.68
  4. Step 4: Simplify right side
    228,870.84x = 27,139,470,723.33
  5. Step 5: Solve for x
    x = 27,139,470,723.33/228,870.84
  6. Step 6: Final answer
    x = 118,579.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.