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Finding the Fourth Proportional to 490,371.40, 735,556.01 and 130,542.33

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Solution

The fourth proportional to 490,371.40, 735,556.01 and 130,542.33 is: 195,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,371.40 : 735,556.01 = 130,542.33 : x
  2. Step 2: Convert to fraction form
    490,371.40/735,556.01 = 130,542.33/x
  3. Step 3: Cross multiply
    490,371.40x = 735,556.01 × 130,542.33
  4. Step 4: Simplify right side
    490,371.40x = 96,021,195,390.90
  5. Step 5: Solve for x
    x = 96,021,195,390.90/490,371.40
  6. Step 6: Final answer
    x = 195,813.21

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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.