Finding the Fourth Proportional to 179,436.74, 268,901.21 and 99,509.87
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Solution
The fourth proportional to 179,436.74, 268,901.21 and 99,509.87 is: 149,123.99
Step by Step Solution
- Step 1: Write the proportion equation
179,436.74 : 268,901.21 = 99,509.87 : x - Step 2: Convert to fraction form
179,436.74/268,901.21 = 99,509.87/x - Step 3: Cross multiply
179,436.74x = 268,901.21 × 99,509.87 - Step 4: Simplify right side
179,436.74x = 26,758,323,354.21 - Step 5: Solve for x
x = 26,758,323,354.21/179,436.74 - Step 6: Final answer
x = 149,123.99
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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.