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Finding the Fourth Proportional to 343,558.89, 515,089.17 and 230,959.80

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Solution

The fourth proportional to 343,558.89, 515,089.17 and 230,959.80 is: 346,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,558.89 : 515,089.17 = 230,959.80 : x
  2. Step 2: Convert to fraction form
    343,558.89/515,089.17 = 230,959.80/x
  3. Step 3: Cross multiply
    343,558.89x = 515,089.17 × 230,959.80
  4. Step 4: Simplify right side
    343,558.89x = 118,964,891,685.37
  5. Step 5: Solve for x
    x = 118,964,891,685.37/343,558.89
  6. Step 6: Final answer
    x = 346,272.20

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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.