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Finding the Fourth Proportional to 171,813.80, 257,283.30 and 163,940.60

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Solution

The fourth proportional to 171,813.80, 257,283.30 and 163,940.60 is: 245,493.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,813.80 : 257,283.30 = 163,940.60 : x
  2. Step 2: Convert to fraction form
    171,813.80/257,283.30 = 163,940.60/x
  3. Step 3: Cross multiply
    171,813.80x = 257,283.30 × 163,940.60
  4. Step 4: Simplify right side
    171,813.80x = 42,179,178,571.98
  5. Step 5: Solve for x
    x = 42,179,178,571.98/171,813.80
  6. Step 6: Final answer
    x = 245,493.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.