Home / 223,415.20-308,312.22-127,921.60

Finding the Fourth Proportional to 223,415.20, 308,312.22 and 127,921.60

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Solution

The fourth proportional to 223,415.20, 308,312.22 and 127,921.60 is: 176,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,415.20 : 308,312.22 = 127,921.60 : x
  2. Step 2: Convert to fraction form
    223,415.20/308,312.22 = 127,921.60/x
  3. Step 3: Cross multiply
    223,415.20x = 308,312.22 × 127,921.60
  4. Step 4: Simplify right side
    223,415.20x = 39,439,792,481.95
  5. Step 5: Solve for x
    x = 39,439,792,481.95/223,415.20
  6. Step 6: Final answer
    x = 176,531.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.