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Finding the Fourth Proportional to 228,584.80, 342,877.20 and 80,840.80

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Solution

The fourth proportional to 228,584.80, 342,877.20 and 80,840.80 is: 121,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,584.80 : 342,877.20 = 80,840.80 : x
  2. Step 2: Convert to fraction form
    228,584.80/342,877.20 = 80,840.80/x
  3. Step 3: Cross multiply
    228,584.80x = 342,877.20 × 80,840.80
  4. Step 4: Simplify right side
    228,584.80x = 27,718,467,149.76
  5. Step 5: Solve for x
    x = 27,718,467,149.76/228,584.80
  6. Step 6: Final answer
    x = 121,261.20

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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.