Finding the Fourth Proportional to 402,568.92, 555,557.67 and 221,294.79
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Solution
The fourth proportional to 402,568.92, 555,557.67 and 221,294.79 is: 305,393.71
Step by Step Solution
- Step 1: Write the proportion equation
402,568.92 : 555,557.67 = 221,294.79 : x - Step 2: Convert to fraction form
402,568.92/555,557.67 = 221,294.79/x - Step 3: Cross multiply
402,568.92x = 555,557.67 × 221,294.79 - Step 4: Simplify right side
402,568.92x = 122,942,017,915.54 - Step 5: Solve for x
x = 122,942,017,915.54/402,568.92 - Step 6: Final answer
x = 305,393.71
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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.