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Finding the Fourth Proportional to 228,796.40, 343,259.40 and 71,040.80

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Solution

The fourth proportional to 228,796.40, 343,259.40 and 71,040.80 is: 106,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,796.40 : 343,259.40 = 71,040.80 : x
  2. Step 2: Convert to fraction form
    228,796.40/343,259.40 = 71,040.80/x
  3. Step 3: Cross multiply
    228,796.40x = 343,259.40 × 71,040.80
  4. Step 4: Simplify right side
    228,796.40x = 24,385,422,383.52
  5. Step 5: Solve for x
    x = 24,385,422,383.52/228,796.40
  6. Step 6: Final answer
    x = 106,581.32

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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.