Finding the Fourth Proportional to 215,267.28, 322,901.19 and 102,921.09
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Solution
The fourth proportional to 215,267.28, 322,901.19 and 102,921.09 is: 154,381.76
Step by Step Solution
- Step 1: Write the proportion equation
215,267.28 : 322,901.19 = 102,921.09 : x - Step 2: Convert to fraction form
215,267.28/322,901.19 = 102,921.09/x - Step 3: Cross multiply
215,267.28x = 322,901.19 × 102,921.09 - Step 4: Simplify right side
215,267.28x = 33,233,342,437.10 - Step 5: Solve for x
x = 33,233,342,437.10/215,267.28 - Step 6: Final answer
x = 154,381.76
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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.