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Finding the Fourth Proportional to 320,988.63, 481,563 and 96,353.22

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Solution

The fourth proportional to 320,988.63, 481,563 and 96,353.22 is: 144,553.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,988.63 : 481,563 = 96,353.22 : x
  2. Step 2: Convert to fraction form
    320,988.63/481,563 = 96,353.22/x
  3. Step 3: Cross multiply
    320,988.63x = 481,563 × 96,353.22
  4. Step 4: Simplify right side
    320,988.63x = 46,400,145,682.86
  5. Step 5: Solve for x
    x = 46,400,145,682.86/320,988.63
  6. Step 6: Final answer
    x = 144,553.86

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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.