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Finding the Fourth Proportional to 343,735.56, 515,980.35 and 273,112.02

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Solution

The fourth proportional to 343,735.56, 515,980.35 and 273,112.02 is: 409,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,735.56 : 515,980.35 = 273,112.02 : x
  2. Step 2: Convert to fraction form
    343,735.56/515,980.35 = 273,112.02/x
  3. Step 3: Cross multiply
    343,735.56x = 515,980.35 × 273,112.02
  4. Step 4: Simplify right side
    343,735.56x = 140,920,435,668.81
  5. Step 5: Solve for x
    x = 140,920,435,668.81/343,735.56
  6. Step 6: Final answer
    x = 409,967.58

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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.