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Finding the Fourth Proportional to 219,510, 302,923.89 and 118,908

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Solution

The fourth proportional to 219,510, 302,923.89 and 118,908 is: 164,093.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,510 : 302,923.89 = 118,908 : x
  2. Step 2: Convert to fraction form
    219,510/302,923.89 = 118,908/x
  3. Step 3: Cross multiply
    219,510x = 302,923.89 × 118,908
  4. Step 4: Simplify right side
    219,510x = 36,020,073,912.12
  5. Step 5: Solve for x
    x = 36,020,073,912.12/219,510
  6. Step 6: Final answer
    x = 164,093.09

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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.