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Finding the Fourth Proportional to 174,692.40, 261,811.80 and 80,998.80

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Solution

The fourth proportional to 174,692.40, 261,811.80 and 80,998.80 is: 121,393.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,692.40 : 261,811.80 = 80,998.80 : x
  2. Step 2: Convert to fraction form
    174,692.40/261,811.80 = 80,998.80/x
  3. Step 3: Cross multiply
    174,692.40x = 261,811.80 × 80,998.80
  4. Step 4: Simplify right side
    174,692.40x = 21,206,441,625.84
  5. Step 5: Solve for x
    x = 21,206,441,625.84/174,692.40
  6. Step 6: Final answer
    x = 121,393.04

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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.