Finding the Fourth Proportional to 274,545.10, 378,872.39 and 153,686.62
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Solution
The fourth proportional to 274,545.10, 378,872.39 and 153,686.62 is: 212,087.62
Step by Step Solution
- Step 1: Write the proportion equation
274,545.10 : 378,872.39 = 153,686.62 : x - Step 2: Convert to fraction form
274,545.10/378,872.39 = 153,686.62/x - Step 3: Cross multiply
274,545.10x = 378,872.39 × 153,686.62 - Step 4: Simplify right side
274,545.10x = 58,227,616,467.46 - Step 5: Solve for x
x = 58,227,616,467.46/274,545.10 - Step 6: Final answer
x = 212,087.62
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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.