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Finding the Fourth Proportional to 201,328.78, 301,986.26 and 51,570.37

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Solution

The fourth proportional to 201,328.78, 301,986.26 and 51,570.37 is: 77,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,328.78 : 301,986.26 = 51,570.37 : x
  2. Step 2: Convert to fraction form
    201,328.78/301,986.26 = 51,570.37/x
  3. Step 3: Cross multiply
    201,328.78x = 301,986.26 × 51,570.37
  4. Step 4: Simplify right side
    201,328.78x = 15,573,543,367.36
  5. Step 5: Solve for x
    x = 15,573,543,367.36/201,328.78
  6. Step 6: Final answer
    x = 77,353.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.