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Finding the Fourth Proportional to 376,310.72, 519,301.40 and 212,964.21

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Solution

The fourth proportional to 376,310.72, 519,301.40 and 212,964.21 is: 293,886.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,310.72 : 519,301.40 = 212,964.21 : x
  2. Step 2: Convert to fraction form
    376,310.72/519,301.40 = 212,964.21/x
  3. Step 3: Cross multiply
    376,310.72x = 519,301.40 × 212,964.21
  4. Step 4: Simplify right side
    376,310.72x = 110,592,611,338.07
  5. Step 5: Solve for x
    x = 110,592,611,338.07/376,310.72
  6. Step 6: Final answer
    x = 293,886.42

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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.