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Finding the Fourth Proportional to 376,687.72, 519,598.76 and 223,622

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Solution

The fourth proportional to 376,687.72, 519,598.76 and 223,622 is: 308,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,687.72 : 519,598.76 = 223,622 : x
  2. Step 2: Convert to fraction form
    376,687.72/519,598.76 = 223,622/x
  3. Step 3: Cross multiply
    376,687.72x = 519,598.76 × 223,622
  4. Step 4: Simplify right side
    376,687.72x = 116,193,713,908.72
  5. Step 5: Solve for x
    x = 116,193,713,908.72/376,687.72
  6. Step 6: Final answer
    x = 308,461.65

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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.