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Finding the Fourth Proportional to 490,372.02, 735,556.95 and 130,542.95

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Solution

The fourth proportional to 490,372.02, 735,556.95 and 130,542.95 is: 195,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,372.02 : 735,556.95 = 130,542.95 : x
  2. Step 2: Convert to fraction form
    490,372.02/735,556.95 = 130,542.95/x
  3. Step 3: Cross multiply
    490,372.02x = 735,556.95 × 130,542.95
  4. Step 4: Simplify right side
    490,372.02x = 96,021,775,984.89
  5. Step 5: Solve for x
    x = 96,021,775,984.89/490,372.02
  6. Step 6: Final answer
    x = 195,814.14

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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.