Finding the Fourth Proportional to 220,725.74, 304,595.79 and 128,862.62
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Solution
The fourth proportional to 220,725.74, 304,595.79 and 128,862.62 is: 177,827.07
Step by Step Solution
- Step 1: Write the proportion equation
220,725.74 : 304,595.79 = 128,862.62 : x - Step 2: Convert to fraction form
220,725.74/304,595.79 = 128,862.62/x - Step 3: Cross multiply
220,725.74x = 304,595.79 × 128,862.62 - Step 4: Simplify right side
220,725.74x = 39,251,011,540.37 - Step 5: Solve for x
x = 39,251,011,540.37/220,725.74 - Step 6: Final answer
x = 177,827.07
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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.