Finding the Fourth Proportional to 312,759.36, 469,108.98 and 88,116.18
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Solution
The fourth proportional to 312,759.36, 469,108.98 and 88,116.18 is: 132,165.80
Step by Step Solution
- Step 1: Write the proportion equation
312,759.36 : 469,108.98 = 88,116.18 : x - Step 2: Convert to fraction form
312,759.36/469,108.98 = 88,116.18/x - Step 3: Cross multiply
312,759.36x = 469,108.98 × 88,116.18 - Step 4: Simplify right side
312,759.36x = 41,336,091,321.30 - Step 5: Solve for x
x = 41,336,091,321.30/312,759.36 - Step 6: Final answer
x = 132,165.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.