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Finding the Fourth Proportional to 376,319.94, 519,321.31 and 212,973.48

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Solution

The fourth proportional to 376,319.94, 519,321.31 and 212,973.48 is: 293,903.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,319.94 : 519,321.31 = 212,973.48 : x
  2. Step 2: Convert to fraction form
    376,319.94/519,321.31 = 212,973.48/x
  3. Step 3: Cross multiply
    376,319.94x = 519,321.31 × 212,973.48
  4. Step 4: Simplify right side
    376,319.94x = 110,601,664,032.25
  5. Step 5: Solve for x
    x = 110,601,664,032.25/376,319.94
  6. Step 6: Final answer
    x = 293,903.28

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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.