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Finding the Fourth Proportional to 376,679.70, 519,587.73 and 223,614

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Solution

The fourth proportional to 376,679.70, 519,587.73 and 223,614 is: 308,450.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,679.70 : 519,587.73 = 223,614 : x
  2. Step 2: Convert to fraction form
    376,679.70/519,587.73 = 223,614/x
  3. Step 3: Cross multiply
    376,679.70x = 519,587.73 × 223,614
  4. Step 4: Simplify right side
    376,679.70x = 116,187,090,656.22
  5. Step 5: Solve for x
    x = 116,187,090,656.22/376,679.70
  6. Step 6: Final answer
    x = 308,450.63

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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.