Finding the Fourth Proportional to 281,380.13, 388,341.63 and 160,493.70
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Solution
The fourth proportional to 281,380.13, 388,341.63 and 160,493.70 is: 221,502.44
Step by Step Solution
- Step 1: Write the proportion equation
281,380.13 : 388,341.63 = 160,493.70 : x - Step 2: Convert to fraction form
281,380.13/388,341.63 = 160,493.70/x - Step 3: Cross multiply
281,380.13x = 388,341.63 × 160,493.70 - Step 4: Simplify right side
281,380.13x = 62,326,385,062.73 - Step 5: Solve for x
x = 62,326,385,062.73/281,380.13 - Step 6: Final answer
x = 221,502.44
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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.