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Finding the Fourth Proportional to 248,429.70, 372,644.55 and 130,137.30

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Solution

The fourth proportional to 248,429.70, 372,644.55 and 130,137.30 is: 195,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,429.70 : 372,644.55 = 130,137.30 : x
  2. Step 2: Convert to fraction form
    248,429.70/372,644.55 = 130,137.30/x
  3. Step 3: Cross multiply
    248,429.70x = 372,644.55 × 130,137.30
  4. Step 4: Simplify right side
    248,429.70x = 48,494,955,596.72
  5. Step 5: Solve for x
    x = 48,494,955,596.72/248,429.70
  6. Step 6: Final answer
    x = 195,205.95

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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.