Finding the Fourth Proportional to 306,537.70, 459,806.55 and 84,921.70
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Solution
The fourth proportional to 306,537.70, 459,806.55 and 84,921.70 is: 127,382.55
Step by Step Solution
- Step 1: Write the proportion equation
306,537.70 : 459,806.55 = 84,921.70 : x - Step 2: Convert to fraction form
306,537.70/459,806.55 = 84,921.70/x - Step 3: Cross multiply
306,537.70x = 459,806.55 × 84,921.70 - Step 4: Simplify right side
306,537.70x = 39,047,553,897.14 - Step 5: Solve for x
x = 39,047,553,897.14/306,537.70 - Step 6: Final answer
x = 127,382.55
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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.