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Finding the Fourth Proportional to 248,349.38, 342,722.79 and 140,919.12

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Solution

The fourth proportional to 248,349.38, 342,722.79 and 140,919.12 is: 194,468.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,349.38 : 342,722.79 = 140,919.12 : x
  2. Step 2: Convert to fraction form
    248,349.38/342,722.79 = 140,919.12/x
  3. Step 3: Cross multiply
    248,349.38x = 342,722.79 × 140,919.12
  4. Step 4: Simplify right side
    248,349.38x = 48,296,193,970.74
  5. Step 5: Solve for x
    x = 48,296,193,970.74/248,349.38
  6. Step 6: Final answer
    x = 194,468.76

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1.5x scale

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.