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Finding the Fourth Proportional to 376,504.56, 519,586.92 and 223,505.28

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Solution

The fourth proportional to 376,504.56, 519,586.92 and 223,505.28 is: 308,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,504.56 : 519,586.92 = 223,505.28 : x
  2. Step 2: Convert to fraction form
    376,504.56/519,586.92 = 223,505.28/x
  3. Step 3: Cross multiply
    376,504.56x = 519,586.92 × 223,505.28
  4. Step 4: Simplify right side
    376,504.56x = 116,130,420,038.94
  5. Step 5: Solve for x
    x = 116,130,420,038.94/376,504.56
  6. Step 6: Final answer
    x = 308,443.60

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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.