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Finding the Fourth Proportional to 248,348.28, 372,491.64 and 70,870.80

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Solution

The fourth proportional to 248,348.28, 372,491.64 and 70,870.80 is: 106,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,348.28 : 372,491.64 = 70,870.80 : x
  2. Step 2: Convert to fraction form
    248,348.28/372,491.64 = 70,870.80/x
  3. Step 3: Cross multiply
    248,348.28x = 372,491.64 × 70,870.80
  4. Step 4: Simplify right side
    248,348.28x = 26,398,780,520.11
  5. Step 5: Solve for x
    x = 26,398,780,520.11/248,348.28
  6. Step 6: Final answer
    x = 106,297.42

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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.