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Finding the Fourth Proportional to 219,765.89, 303,278.76 and 119,163.89

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Solution

The fourth proportional to 219,765.89, 303,278.76 and 119,163.89 is: 164,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,765.89 : 303,278.76 = 119,163.89 : x
  2. Step 2: Convert to fraction form
    219,765.89/303,278.76 = 119,163.89/x
  3. Step 3: Cross multiply
    219,765.89x = 303,278.76 × 119,163.89
  4. Step 4: Simplify right side
    219,765.89x = 36,139,875,279.58
  5. Step 5: Solve for x
    x = 36,139,875,279.58/219,765.89
  6. Step 6: Final answer
    x = 164,447.16

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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.