Finding the Fourth Proportional to 388,902.75, 536,686.16 and 210,054.75
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Solution
The fourth proportional to 388,902.75, 536,686.16 and 210,054.75 is: 289,875.75
Step by Step Solution
- Step 1: Write the proportion equation
388,902.75 : 536,686.16 = 210,054.75 : x - Step 2: Convert to fraction form
388,902.75/536,686.16 = 210,054.75/x - Step 3: Cross multiply
388,902.75x = 536,686.16 × 210,054.75 - Step 4: Simplify right side
388,902.75x = 112,733,476,116.99 - Step 5: Solve for x
x = 112,733,476,116.99/388,902.75 - Step 6: Final answer
x = 289,875.75
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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.