Finding the Fourth Proportional to 216,887.14, 299,304.18 and 121,393.78
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Solution
The fourth proportional to 216,887.14, 299,304.18 and 121,393.78 is: 167,523.38
Step by Step Solution
- Step 1: Write the proportion equation
216,887.14 : 299,304.18 = 121,393.78 : x - Step 2: Convert to fraction form
216,887.14/299,304.18 = 121,393.78/x - Step 3: Cross multiply
216,887.14x = 299,304.18 × 121,393.78 - Step 4: Simplify right side
216,887.14x = 36,333,665,780.00 - Step 5: Solve for x
x = 36,333,665,780.00/216,887.14 - Step 6: Final answer
x = 167,523.38
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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.