Finding the Fourth Proportional to 381,088.84, 525,907.94 and 209,021.80
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Solution
The fourth proportional to 381,088.84, 525,907.94 and 209,021.80 is: 288,453.01
Step by Step Solution
- Step 1: Write the proportion equation
381,088.84 : 525,907.94 = 209,021.80 : x - Step 2: Convert to fraction form
381,088.84/525,907.94 = 209,021.80/x - Step 3: Cross multiply
381,088.84x = 525,907.94 × 209,021.80 - Step 4: Simplify right side
381,088.84x = 109,926,224,253.09 - Step 5: Solve for x
x = 109,926,224,253.09/381,088.84 - Step 6: Final answer
x = 288,453.01
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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.