Finding the Fourth Proportional to 216,754.84, 298,716.42 and 156,220.84
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Solution
The fourth proportional to 216,754.84, 298,716.42 and 156,220.84 is: 215,292.68
Step by Step Solution
- Step 1: Write the proportion equation
216,754.84 : 298,716.42 = 156,220.84 : x - Step 2: Convert to fraction form
216,754.84/298,716.42 = 156,220.84/x - Step 3: Cross multiply
216,754.84x = 298,716.42 × 156,220.84 - Step 4: Simplify right side
216,754.84x = 46,665,730,054.19 - Step 5: Solve for x
x = 46,665,730,054.19/216,754.84 - Step 6: Final answer
x = 215,292.68
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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.