Finding the Fourth Proportional to 378,282.24, 567,511.68 and 128,964.48
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Solution
The fourth proportional to 378,282.24, 567,511.68 and 128,964.48 is: 193,476.83
Step by Step Solution
- Step 1: Write the proportion equation
378,282.24 : 567,511.68 = 128,964.48 : x - Step 2: Convert to fraction form
378,282.24/567,511.68 = 128,964.48/x - Step 3: Cross multiply
378,282.24x = 567,511.68 × 128,964.48 - Step 4: Simplify right side
378,282.24x = 73,188,848,705.13 - Step 5: Solve for x
x = 73,188,848,705.13/378,282.24 - Step 6: Final answer
x = 193,476.83
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1.5x scale
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.