Finding the Fourth Proportional to 305,545.90, 421,646.99 and 169,571.95
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Solution
The fourth proportional to 305,545.90, 421,646.99 and 169,571.95 is: 234,005.76
Step by Step Solution
- Step 1: Write the proportion equation
305,545.90 : 421,646.99 = 169,571.95 : x - Step 2: Convert to fraction form
305,545.90/421,646.99 = 169,571.95/x - Step 3: Cross multiply
305,545.90x = 421,646.99 × 169,571.95 - Step 4: Simplify right side
305,545.90x = 71,499,500,197.70 - Step 5: Solve for x
x = 71,499,500,197.70/305,545.90 - Step 6: Final answer
x = 234,005.76
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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.