Finding the Fourth Proportional to 216,658.17, 299,003.49 and 121,173.75
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Solution
The fourth proportional to 216,658.17, 299,003.49 and 121,173.75 is: 167,228.28
Step by Step Solution
- Step 1: Write the proportion equation
216,658.17 : 299,003.49 = 121,173.75 : x - Step 2: Convert to fraction form
216,658.17/299,003.49 = 121,173.75/x - Step 3: Cross multiply
216,658.17x = 299,003.49 × 121,173.75 - Step 4: Simplify right side
216,658.17x = 36,231,374,146.39 - Step 5: Solve for x
x = 36,231,374,146.39/216,658.17 - Step 6: Final answer
x = 167,228.28
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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.