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Finding the Fourth Proportional to 376,359.30, 519,356.49 and 223,403.94

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Solution

The fourth proportional to 376,359.30, 519,356.49 and 223,403.94 is: 308,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,359.30 : 519,356.49 = 223,403.94 : x
  2. Step 2: Convert to fraction form
    376,359.30/519,356.49 = 223,403.94/x
  3. Step 3: Cross multiply
    376,359.30x = 519,356.49 × 223,403.94
  4. Step 4: Simplify right side
    376,359.30x = 116,026,286,130.57
  5. Step 5: Solve for x
    x = 116,026,286,130.57/376,359.30
  6. Step 6: Final answer
    x = 308,285.95

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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.