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Finding the Fourth Proportional to 343,460.70, 515,191.05 and 223,886.48

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Solution

The fourth proportional to 343,460.70, 515,191.05 and 223,886.48 is: 335,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,460.70 : 515,191.05 = 223,886.48 : x
  2. Step 2: Convert to fraction form
    343,460.70/515,191.05 = 223,886.48/x
  3. Step 3: Cross multiply
    343,460.70x = 515,191.05 × 223,886.48
  4. Step 4: Simplify right side
    343,460.70x = 115,344,308,136.05
  5. Step 5: Solve for x
    x = 115,344,308,136.05/343,460.70
  6. Step 6: Final answer
    x = 335,829.71

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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.