Finding the Fourth Proportional to 353,436.81, 487,737.44 and 192,288.18
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Solution
The fourth proportional to 353,436.81, 487,737.44 and 192,288.18 is: 265,354.77
Step by Step Solution
- Step 1: Write the proportion equation
353,436.81 : 487,737.44 = 192,288.18 : x - Step 2: Convert to fraction form
353,436.81/487,737.44 = 192,288.18/x - Step 3: Cross multiply
353,436.81x = 487,737.44 × 192,288.18 - Step 4: Simplify right side
353,436.81x = 93,786,143,694.02 - Step 5: Solve for x
x = 93,786,143,694.02/353,436.81 - Step 6: Final answer
x = 265,354.77
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1.5x scale
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.