Finding the Fourth Proportional to 396,597.08, 547,313.49 and 215,316.65
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Solution
The fourth proportional to 396,597.08, 547,313.49 and 215,316.65 is: 297,142.14
Step by Step Solution
- Step 1: Write the proportion equation
396,597.08 : 547,313.49 = 215,316.65 : x - Step 2: Convert to fraction form
396,597.08/547,313.49 = 215,316.65/x - Step 3: Cross multiply
396,597.08x = 547,313.49 × 215,316.65 - Step 4: Simplify right side
396,597.08x = 117,845,704,430.04 - Step 5: Solve for x
x = 117,845,704,430.04/396,597.08 - Step 6: Final answer
x = 297,142.14
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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.