Finding the Fourth Proportional to 284,616.99, 392,813.15 and 171,437.31
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Solution
The fourth proportional to 284,616.99, 392,813.15 and 171,437.31 is: 236,608.60
Step by Step Solution
- Step 1: Write the proportion equation
284,616.99 : 392,813.15 = 171,437.31 : x - Step 2: Convert to fraction form
284,616.99/392,813.15 = 171,437.31/x - Step 3: Cross multiply
284,616.99x = 392,813.15 × 171,437.31 - Step 4: Simplify right side
284,616.99x = 67,342,828,911.44 - Step 5: Solve for x
x = 67,342,828,911.44/284,616.99 - Step 6: Final answer
x = 236,608.60
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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.