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Finding the Fourth Proportional to 219,591, 303,035.58 and 118,989

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Solution

The fourth proportional to 219,591, 303,035.58 and 118,989 is: 164,204.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,591 : 303,035.58 = 118,989 : x
  2. Step 2: Convert to fraction form
    219,591/303,035.58 = 118,989/x
  3. Step 3: Cross multiply
    219,591x = 303,035.58 × 118,989
  4. Step 4: Simplify right side
    219,591x = 36,057,900,628.62
  5. Step 5: Solve for x
    x = 36,057,900,628.62/219,591
  6. Step 6: Final answer
    x = 164,204.82

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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.