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Finding the Fourth Proportional to 376,287.72, 519,237.92 and 212,962.56

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Solution

The fourth proportional to 376,287.72, 519,237.92 and 212,962.56 is: 293,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,287.72 : 519,237.92 = 212,962.56 : x
  2. Step 2: Convert to fraction form
    376,287.72/519,237.92 = 212,962.56/x
  3. Step 3: Cross multiply
    376,287.72x = 519,237.92 × 212,962.56
  4. Step 4: Simplify right side
    376,287.72x = 110,578,236,692.28
  5. Step 5: Solve for x
    x = 110,578,236,692.28/376,287.72
  6. Step 6: Final answer
    x = 293,866.18

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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.