Finding the Fourth Proportional to 268,317.70, 402,476.55 and 143,901.70
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Solution
The fourth proportional to 268,317.70, 402,476.55 and 143,901.70 is: 215,852.55
Step by Step Solution
- Step 1: Write the proportion equation
268,317.70 : 402,476.55 = 143,901.70 : x - Step 2: Convert to fraction form
268,317.70/402,476.55 = 143,901.70/x - Step 3: Cross multiply
268,317.70x = 402,476.55 × 143,901.70 - Step 4: Simplify right side
268,317.70x = 57,917,059,755.14 - Step 5: Solve for x
x = 57,917,059,755.14/268,317.70 - Step 6: Final answer
x = 215,852.55
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.