Finding the Fourth Proportional to 396,526.29, 547,206.80 and 215,238.09
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Solution
The fourth proportional to 396,526.29, 547,206.80 and 215,238.09 is: 297,028.84
Step by Step Solution
- Step 1: Write the proportion equation
396,526.29 : 547,206.80 = 215,238.09 : x - Step 2: Convert to fraction form
396,526.29/547,206.80 = 215,238.09/x - Step 3: Cross multiply
396,526.29x = 547,206.80 × 215,238.09 - Step 4: Simplify right side
396,526.29x = 117,779,745,390.82 - Step 5: Solve for x
x = 117,779,745,390.82/396,526.29 - Step 6: Final answer
x = 297,028.84
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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.