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Finding the Fourth Proportional to 248,397.37, 342,768.78 and 140,967.42

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Solution

The fourth proportional to 248,397.37, 342,768.78 and 140,967.42 is: 194,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,397.37 : 342,768.78 = 140,967.42 : x
  2. Step 2: Convert to fraction form
    248,397.37/342,768.78 = 140,967.42/x
  3. Step 3: Cross multiply
    248,397.37x = 342,768.78 × 140,967.42
  4. Step 4: Simplify right side
    248,397.37x = 48,319,230,573.15
  5. Step 5: Solve for x
    x = 48,319,230,573.15/248,397.37
  6. Step 6: Final answer
    x = 194,523.92

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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.