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Finding the Fourth Proportional to 248,412.24, 342,750.60 and 140,958

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Solution

The fourth proportional to 248,412.24, 342,750.60 and 140,958 is: 194,488.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,412.24 : 342,750.60 = 140,958 : x
  2. Step 2: Convert to fraction form
    248,412.24/342,750.60 = 140,958/x
  3. Step 3: Cross multiply
    248,412.24x = 342,750.60 × 140,958
  4. Step 4: Simplify right side
    248,412.24x = 48,313,439,074.80
  5. Step 5: Solve for x
    x = 48,313,439,074.80/248,412.24
  6. Step 6: Final answer
    x = 194,488.96

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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.