Finding the Fourth Proportional to 317,702.63, 438,059.23 and 236,990.05
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Solution
The fourth proportional to 317,702.63, 438,059.23 and 236,990.05 is: 326,769.96
Step by Step Solution
- Step 1: Write the proportion equation
317,702.63 : 438,059.23 = 236,990.05 : x - Step 2: Convert to fraction form
317,702.63/438,059.23 = 236,990.05/x - Step 3: Cross multiply
317,702.63x = 438,059.23 × 236,990.05 - Step 4: Simplify right side
317,702.63x = 103,815,677,133.04 - Step 5: Solve for x
x = 103,815,677,133.04/317,702.63 - Step 6: Final answer
x = 326,769.96
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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.