Finding the Fourth Proportional to 220,980.98, 304,953.81 and 120,378.98
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Solution
The fourth proportional to 220,980.98, 304,953.81 and 120,378.98 is: 166,123.02
Step by Step Solution
- Step 1: Write the proportion equation
220,980.98 : 304,953.81 = 120,378.98 : x - Step 2: Convert to fraction form
220,980.98/304,953.81 = 120,378.98/x - Step 3: Cross multiply
220,980.98x = 304,953.81 × 120,378.98 - Step 4: Simplify right side
220,980.98x = 36,710,028,905.88 - Step 5: Solve for x
x = 36,710,028,905.88/220,980.98 - Step 6: Final answer
x = 166,123.02
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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.