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Finding the Fourth Proportional to 381,225.64, 526,154.48 and 211,514.44

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Solution

The fourth proportional to 381,225.64, 526,154.48 and 211,514.44 is: 291,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,225.64 : 526,154.48 = 211,514.44 : x
  2. Step 2: Convert to fraction form
    381,225.64/526,154.48 = 211,514.44/x
  3. Step 3: Cross multiply
    381,225.64x = 526,154.48 × 211,514.44
  4. Step 4: Simplify right side
    381,225.64x = 111,289,270,190.69
  5. Step 5: Solve for x
    x = 111,289,270,190.69/381,225.64
  6. Step 6: Final answer
    x = 291,924.94

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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.