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Finding the Fourth Proportional to 248,337.20, 372,520.20 and 70,857.20

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Solution

The fourth proportional to 248,337.20, 372,520.20 and 70,857.20 is: 106,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,337.20 : 372,520.20 = 70,857.20 : x
  2. Step 2: Convert to fraction form
    248,337.20/372,520.20 = 70,857.20/x
  3. Step 3: Cross multiply
    248,337.20x = 372,520.20 × 70,857.20
  4. Step 4: Simplify right side
    248,337.20x = 26,395,738,315.44
  5. Step 5: Solve for x
    x = 26,395,738,315.44/248,337.20
  6. Step 6: Final answer
    x = 106,289.91

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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.