Finding the Fourth Proportional to 245,983.52, 369,082.49 and 86,174.09
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Solution
The fourth proportional to 245,983.52, 369,082.49 and 86,174.09 is: 129,298.70
Step by Step Solution
- Step 1: Write the proportion equation
245,983.52 : 369,082.49 = 86,174.09 : x - Step 2: Convert to fraction form
245,983.52/369,082.49 = 86,174.09/x - Step 3: Cross multiply
245,983.52x = 369,082.49 × 86,174.09 - Step 4: Simplify right side
245,983.52x = 31,805,349,379.28 - Step 5: Solve for x
x = 31,805,349,379.28/245,983.52 - Step 6: Final answer
x = 129,298.70
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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.