Finding the Fourth Proportional to 221,947.36, 306,211.76 and 135,946.96
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Solution
The fourth proportional to 221,947.36, 306,211.76 and 135,946.96 is: 187,560.50
Step by Step Solution
- Step 1: Write the proportion equation
221,947.36 : 306,211.76 = 135,946.96 : x - Step 2: Convert to fraction form
221,947.36/306,211.76 = 135,946.96/x - Step 3: Cross multiply
221,947.36x = 306,211.76 × 135,946.96 - Step 4: Simplify right side
221,947.36x = 41,628,557,888.25 - Step 5: Solve for x
x = 41,628,557,888.25/221,947.36 - Step 6: Final answer
x = 187,560.50
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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.