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Finding the Fourth Proportional to 376,985.44, 520,213.36 and 207,230.56

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Solution

The fourth proportional to 376,985.44, 520,213.36 and 207,230.56 is: 285,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,985.44 : 520,213.36 = 207,230.56 : x
  2. Step 2: Convert to fraction form
    376,985.44/520,213.36 = 207,230.56/x
  3. Step 3: Cross multiply
    376,985.44x = 520,213.36 × 207,230.56
  4. Step 4: Simplify right side
    376,985.44x = 107,804,105,912.28
  5. Step 5: Solve for x
    x = 107,804,105,912.28/376,985.44
  6. Step 6: Final answer
    x = 285,963.58

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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.