Finding the Fourth Proportional to 284,436.93, 392,502.99 and 157,102.50
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Solution
The fourth proportional to 284,436.93, 392,502.99 and 157,102.50 is: 216,790.42
Step by Step Solution
- Step 1: Write the proportion equation
284,436.93 : 392,502.99 = 157,102.50 : x - Step 2: Convert to fraction form
284,436.93/392,502.99 = 157,102.50/x - Step 3: Cross multiply
284,436.93x = 392,502.99 × 157,102.50 - Step 4: Simplify right side
284,436.93x = 61,663,200,986.48 - Step 5: Solve for x
x = 61,663,200,986.48/284,436.93 - Step 6: Final answer
x = 216,790.42
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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.