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Finding the Fourth Proportional to 219,580.89, 303,022.26 and 118,978.89

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Solution

The fourth proportional to 219,580.89, 303,022.26 and 118,978.89 is: 164,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,580.89 : 303,022.26 = 118,978.89 : x
  2. Step 2: Convert to fraction form
    219,580.89/303,022.26 = 118,978.89/x
  3. Step 3: Cross multiply
    219,580.89x = 303,022.26 × 118,978.89
  4. Step 4: Simplify right side
    219,580.89x = 36,053,252,140.09
  5. Step 5: Solve for x
    x = 36,053,252,140.09/219,580.89
  6. Step 6: Final answer
    x = 164,191.21

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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.