Home / 221,200.22-305,255.76-125,706.80

Finding the Fourth Proportional to 221,200.22, 305,255.76 and 125,706.80

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Solution

The fourth proportional to 221,200.22, 305,255.76 and 125,706.80 is: 173,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,200.22 : 305,255.76 = 125,706.80 : x
  2. Step 2: Convert to fraction form
    221,200.22/305,255.76 = 125,706.80/x
  3. Step 3: Cross multiply
    221,200.22x = 305,255.76 × 125,706.80
  4. Step 4: Simplify right side
    221,200.22x = 38,372,724,771.17
  5. Step 5: Solve for x
    x = 38,372,724,771.17/221,200.22
  6. Step 6: Final answer
    x = 173,475.08

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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.