Finding the Fourth Proportional to 220,435.99, 303,916.14 and 142,773.46
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Solution
The fourth proportional to 220,435.99, 303,916.14 and 142,773.46 is: 196,842.45
Step by Step Solution
- Step 1: Write the proportion equation
220,435.99 : 303,916.14 = 142,773.46 : x - Step 2: Convert to fraction form
220,435.99/303,916.14 = 142,773.46/x - Step 3: Cross multiply
220,435.99x = 303,916.14 × 142,773.46 - Step 4: Simplify right side
220,435.99x = 43,391,159,974.37 - Step 5: Solve for x
x = 43,391,159,974.37/220,435.99 - Step 6: Final answer
x = 196,842.45
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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.