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Finding the Fourth Proportional to 219,900.86, 303,463.78 and 119,298.86

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Solution

The fourth proportional to 219,900.86, 303,463.78 and 119,298.86 is: 164,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,900.86 : 303,463.78 = 119,298.86 : x
  2. Step 2: Convert to fraction form
    219,900.86/303,463.78 = 119,298.86/x
  3. Step 3: Cross multiply
    219,900.86x = 303,463.78 × 119,298.86
  4. Step 4: Simplify right side
    219,900.86x = 36,202,882,408.80
  5. Step 5: Solve for x
    x = 36,202,882,408.80/219,900.86
  6. Step 6: Final answer
    x = 164,632.75

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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.