Finding the Fourth Proportional to 216,887.83, 299,305.16 and 121,394.53
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Solution
The fourth proportional to 216,887.83, 299,305.16 and 121,394.53 is: 167,524.42
Step by Step Solution
- Step 1: Write the proportion equation
216,887.83 : 299,305.16 = 121,394.53 : x - Step 2: Convert to fraction form
216,887.83/299,305.16 = 121,394.53/x - Step 3: Cross multiply
216,887.83x = 299,305.16 × 121,394.53 - Step 4: Simplify right side
216,887.83x = 36,334,008,617.80 - Step 5: Solve for x
x = 36,334,008,617.80/216,887.83 - Step 6: Final answer
x = 167,524.42
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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.