Finding the Fourth Proportional to 221,445.19, 305,611.28 and 125,946.19
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Solution
The fourth proportional to 221,445.19, 305,611.28 and 125,946.19 is: 173,815.36
Step by Step Solution
- Step 1: Write the proportion equation
221,445.19 : 305,611.28 = 125,946.19 : x - Step 2: Convert to fraction form
221,445.19/305,611.28 = 125,946.19/x - Step 3: Cross multiply
221,445.19x = 305,611.28 × 125,946.19 - Step 4: Simplify right side
221,445.19x = 38,490,576,337.02 - Step 5: Solve for x
x = 38,490,576,337.02/221,445.19 - Step 6: Final answer
x = 173,815.36
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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.