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Finding the Fourth Proportional to 340,912.02, 511,441.89 and 130,549.98

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Solution

The fourth proportional to 340,912.02, 511,441.89 and 130,549.98 is: 195,853.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,912.02 : 511,441.89 = 130,549.98 : x
  2. Step 2: Convert to fraction form
    340,912.02/511,441.89 = 130,549.98/x
  3. Step 3: Cross multiply
    340,912.02x = 511,441.89 × 130,549.98
  4. Step 4: Simplify right side
    340,912.02x = 66,768,728,510.66
  5. Step 5: Solve for x
    x = 66,768,728,510.66/340,912.02
  6. Step 6: Final answer
    x = 195,853.25

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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.