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Finding the Fourth Proportional to 343,351.59, 515,004.83 and 118,659.75

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Solution

The fourth proportional to 343,351.59, 515,004.83 and 118,659.75 is: 177,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,351.59 : 515,004.83 = 118,659.75 : x
  2. Step 2: Convert to fraction form
    343,351.59/515,004.83 = 118,659.75/x
  3. Step 3: Cross multiply
    343,351.59x = 515,004.83 × 118,659.75
  4. Step 4: Simplify right side
    343,351.59x = 61,110,343,783.29
  5. Step 5: Solve for x
    x = 61,110,343,783.29/343,351.59
  6. Step 6: Final answer
    x = 177,981.83

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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.