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Finding the Fourth Proportional to 219,881.89, 303,437.59 and 119,279.89

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Solution

The fourth proportional to 219,881.89, 303,437.59 and 119,279.89 is: 164,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,881.89 : 303,437.59 = 119,279.89 : x
  2. Step 2: Convert to fraction form
    219,881.89/303,437.59 = 119,279.89/x
  3. Step 3: Cross multiply
    219,881.89x = 303,437.59 × 119,279.89
  4. Step 4: Simplify right side
    219,881.89x = 36,194,003,109.11
  5. Step 5: Solve for x
    x = 36,194,003,109.11/219,881.89
  6. Step 6: Final answer
    x = 164,606.57

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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.