Finding the Fourth Proportional to 236,946.62, 326,986.34 and 129,517.07
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Solution
The fourth proportional to 236,946.62, 326,986.34 and 129,517.07 is: 178,733.56
Step by Step Solution
- Step 1: Write the proportion equation
236,946.62 : 326,986.34 = 129,517.07 : x - Step 2: Convert to fraction form
236,946.62/326,986.34 = 129,517.07/x - Step 3: Cross multiply
236,946.62x = 326,986.34 × 129,517.07 - Step 4: Simplify right side
236,946.62x = 42,350,312,686.82 - Step 5: Solve for x
x = 42,350,312,686.82/236,946.62 - Step 6: Final answer
x = 178,733.56
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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.