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Finding the Fourth Proportional to 218,889.70, 302,021.62 and 132,893.89

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Solution

The fourth proportional to 218,889.70, 302,021.62 and 132,893.89 is: 183,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,889.70 : 302,021.62 = 132,893.89 : x
  2. Step 2: Convert to fraction form
    218,889.70/302,021.62 = 132,893.89/x
  3. Step 3: Cross multiply
    218,889.70x = 302,021.62 × 132,893.89
  4. Step 4: Simplify right side
    218,889.70x = 40,136,826,858.61
  5. Step 5: Solve for x
    x = 40,136,826,858.61/218,889.70
  6. Step 6: Final answer
    x = 183,365.54

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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.