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Finding the Fourth Proportional to 399,159.09, 599,003.04 and 219,370.07

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Solution

The fourth proportional to 399,159.09, 599,003.04 and 219,370.07 is: 329,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,159.09 : 599,003.04 = 219,370.07 : x
  2. Step 2: Convert to fraction form
    399,159.09/599,003.04 = 219,370.07/x
  3. Step 3: Cross multiply
    399,159.09x = 599,003.04 × 219,370.07
  4. Step 4: Simplify right side
    399,159.09x = 131,403,335,820.00
  5. Step 5: Solve for x
    x = 131,403,335,820.00/399,159.09
  6. Step 6: Final answer
    x = 329,200.41

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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.