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Finding the Fourth Proportional to 399,542.36, 599,309.43 and 230,955.41

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Solution

The fourth proportional to 399,542.36, 599,309.43 and 230,955.41 is: 346,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,542.36 : 599,309.43 = 230,955.41 : x
  2. Step 2: Convert to fraction form
    399,542.36/599,309.43 = 230,955.41/x
  3. Step 3: Cross multiply
    399,542.36x = 599,309.43 × 230,955.41
  4. Step 4: Simplify right side
    399,542.36x = 138,413,755,122.52
  5. Step 5: Solve for x
    x = 138,413,755,122.52/399,542.36
  6. Step 6: Final answer
    x = 346,430.74

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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.