Finding the Fourth Proportional to 262,472.62, 393,771.63 and 84,979.81
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Solution
The fourth proportional to 262,472.62, 393,771.63 and 84,979.81 is: 127,490.02
Step by Step Solution
- Step 1: Write the proportion equation
262,472.62 : 393,771.63 = 84,979.81 : x - Step 2: Convert to fraction form
262,472.62/393,771.63 = 84,979.81/x - Step 3: Cross multiply
262,472.62x = 393,771.63 × 84,979.81 - Step 4: Simplify right side
262,472.62x = 33,462,638,300.79 - Step 5: Solve for x
x = 33,462,638,300.79/262,472.62 - Step 6: Final answer
x = 127,490.02
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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.