Finding the Fourth Proportional to 286,872.21, 395,897.67 and 159,545.07
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Solution
The fourth proportional to 286,872.21, 395,897.67 and 159,545.07 is: 220,179.99
Step by Step Solution
- Step 1: Write the proportion equation
286,872.21 : 395,897.67 = 159,545.07 : x - Step 2: Convert to fraction form
286,872.21/395,897.67 = 159,545.07/x - Step 3: Cross multiply
286,872.21x = 395,897.67 × 159,545.07 - Step 4: Simplify right side
286,872.21x = 63,163,521,472.99 - Step 5: Solve for x
x = 63,163,521,472.99/286,872.21 - Step 6: Final answer
x = 220,179.99
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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.