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Finding the Fourth Proportional to 340,782.75, 511,266.16 and 104,118.97

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Solution

The fourth proportional to 340,782.75, 511,266.16 and 104,118.97 is: 156,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,782.75 : 511,266.16 = 104,118.97 : x
  2. Step 2: Convert to fraction form
    340,782.75/511,266.16 = 104,118.97/x
  3. Step 3: Cross multiply
    340,782.75x = 511,266.16 × 104,118.97
  4. Step 4: Simplify right side
    340,782.75x = 53,232,505,975.06
  5. Step 5: Solve for x
    x = 53,232,505,975.06/340,782.75
  6. Step 6: Final answer
    x = 156,206.57

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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.