Finding the Fourth Proportional to 378,911.06, 522,864.14 and 242,704.70
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Solution
The fourth proportional to 378,911.06, 522,864.14 and 242,704.70 is: 334,911.27
Step by Step Solution
- Step 1: Write the proportion equation
378,911.06 : 522,864.14 = 242,704.70 : x - Step 2: Convert to fraction form
378,911.06/522,864.14 = 242,704.70/x - Step 3: Cross multiply
378,911.06x = 522,864.14 × 242,704.70 - Step 4: Simplify right side
378,911.06x = 126,901,584,239.46 - Step 5: Solve for x
x = 126,901,584,239.46/378,911.06 - Step 6: Final answer
x = 334,911.27
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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.