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Finding the Fourth Proportional to 320,999.31, 481,571.93 and 171,160.59

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Solution

The fourth proportional to 320,999.31, 481,571.93 and 171,160.59 is: 256,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,999.31 : 481,571.93 = 171,160.59 : x
  2. Step 2: Convert to fraction form
    320,999.31/481,571.93 = 171,160.59/x
  3. Step 3: Cross multiply
    320,999.31x = 481,571.93 × 171,160.59
  4. Step 4: Simplify right side
    320,999.31x = 82,426,134,810.44
  5. Step 5: Solve for x
    x = 82,426,134,810.44/320,999.31
  6. Step 6: Final answer
    x = 256,779.79

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1.5x scale

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.