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Finding the Fourth Proportional to 274,172.80, 411,259.20 and 263,675.20

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Solution

The fourth proportional to 274,172.80, 411,259.20 and 263,675.20 is: 395,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,172.80 : 411,259.20 = 263,675.20 : x
  2. Step 2: Convert to fraction form
    274,172.80/411,259.20 = 263,675.20/x
  3. Step 3: Cross multiply
    274,172.80x = 411,259.20 × 263,675.20
  4. Step 4: Simplify right side
    274,172.80x = 108,438,851,811.84
  5. Step 5: Solve for x
    x = 108,438,851,811.84/274,172.80
  6. Step 6: Final answer
    x = 395,512.80

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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.