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Finding the Fourth Proportional to 340,882.41, 511,323.61 and 130,520.34

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Solution

The fourth proportional to 340,882.41, 511,323.61 and 130,520.34 is: 195,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,882.41 : 511,323.61 = 130,520.34 : x
  2. Step 2: Convert to fraction form
    340,882.41/511,323.61 = 130,520.34/x
  3. Step 3: Cross multiply
    340,882.41x = 511,323.61 × 130,520.34
  4. Step 4: Simplify right side
    340,882.41x = 66,738,131,427.23
  5. Step 5: Solve for x
    x = 66,738,131,427.23/340,882.41
  6. Step 6: Final answer
    x = 195,780.51

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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.