Finding the Fourth Proportional to 402,702.17, 555,732.70 and 221,415.26
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Solution
The fourth proportional to 402,702.17, 555,732.70 and 221,415.26 is: 305,555.09
Step by Step Solution
- Step 1: Write the proportion equation
402,702.17 : 555,732.70 = 221,415.26 : x - Step 2: Convert to fraction form
402,702.17/555,732.70 = 221,415.26/x - Step 3: Cross multiply
402,702.17x = 555,732.70 × 221,415.26 - Step 4: Simplify right side
402,702.17x = 123,047,696,928.80 - Step 5: Solve for x
x = 123,047,696,928.80/402,702.17 - Step 6: Final answer
x = 305,555.09
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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.