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Finding the Fourth Proportional to 376,333.28, 519,339.68 and 212,986.80

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Solution

The fourth proportional to 376,333.28, 519,339.68 and 212,986.80 is: 293,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,333.28 : 519,339.68 = 212,986.80 : x
  2. Step 2: Convert to fraction form
    376,333.28/519,339.68 = 212,986.80/x
  3. Step 3: Cross multiply
    376,333.28x = 519,339.68 × 212,986.80
  4. Step 4: Simplify right side
    376,333.28x = 110,612,496,556.22
  5. Step 5: Solve for x
    x = 110,612,496,556.22/376,333.28
  6. Step 6: Final answer
    x = 293,921.64

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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.