Finding the Fourth Proportional to 291,702.88, 402,638.97 and 169,226.20
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Solution
The fourth proportional to 291,702.88, 402,638.97 and 169,226.20 is: 233,583.79
Step by Step Solution
- Step 1: Write the proportion equation
291,702.88 : 402,638.97 = 169,226.20 : x - Step 2: Convert to fraction form
291,702.88/402,638.97 = 169,226.20/x - Step 3: Cross multiply
291,702.88x = 402,638.97 × 169,226.20 - Step 4: Simplify right side
291,702.88x = 68,137,062,865.01 - Step 5: Solve for x
x = 68,137,062,865.01/291,702.88 - Step 6: Final answer
x = 233,583.79
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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.