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Finding the Fourth Proportional to 248,376.40, 342,749.88 and 140,940.04

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Solution

The fourth proportional to 248,376.40, 342,749.88 and 140,940.04 is: 194,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,376.40 : 342,749.88 = 140,940.04 : x
  2. Step 2: Convert to fraction form
    248,376.40/342,749.88 = 140,940.04/x
  3. Step 3: Cross multiply
    248,376.40x = 342,749.88 × 140,940.04
  4. Step 4: Simplify right side
    248,376.40x = 48,307,181,797.20
  5. Step 5: Solve for x
    x = 48,307,181,797.20/248,376.40
  6. Step 6: Final answer
    x = 194,491.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.