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Finding the Fourth Proportional to 315,114.98, 434,895.44 and 179,169.30

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Solution

The fourth proportional to 315,114.98, 434,895.44 and 179,169.30 is: 247,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,114.98 : 434,895.44 = 179,169.30 : x
  2. Step 2: Convert to fraction form
    315,114.98/434,895.44 = 179,169.30/x
  3. Step 3: Cross multiply
    315,114.98x = 434,895.44 × 179,169.30
  4. Step 4: Simplify right side
    315,114.98x = 77,919,910,022.83
  5. Step 5: Solve for x
    x = 77,919,910,022.83/315,114.98
  6. Step 6: Final answer
    x = 247,274.53

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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.