Finding the Fourth Proportional to 268,749.77, 370,889.99 and 154,047.49
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Solution
The fourth proportional to 268,749.77, 370,889.99 and 154,047.49 is: 212,594.31
Step by Step Solution
- Step 1: Write the proportion equation
268,749.77 : 370,889.99 = 154,047.49 : x - Step 2: Convert to fraction form
268,749.77/370,889.99 = 154,047.49/x - Step 3: Cross multiply
268,749.77x = 370,889.99 × 154,047.49 - Step 4: Simplify right side
268,749.77x = 57,134,670,905.84 - Step 5: Solve for x
x = 57,134,670,905.84/268,749.77 - Step 6: Final answer
x = 212,594.31
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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.