Finding the Fourth Proportional to 317,803.23, 476,702.19 and 128,260.68
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Solution
The fourth proportional to 317,803.23, 476,702.19 and 128,260.68 is: 192,389.95
Step by Step Solution
- Step 1: Write the proportion equation
317,803.23 : 476,702.19 = 128,260.68 : x - Step 2: Convert to fraction form
317,803.23/476,702.19 = 128,260.68/x - Step 3: Cross multiply
317,803.23x = 476,702.19 × 128,260.68 - Step 4: Simplify right side
317,803.23x = 61,142,147,046.89 - Step 5: Solve for x
x = 61,142,147,046.89/317,803.23 - Step 6: Final answer
x = 192,389.95
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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.