Finding the Fourth Proportional to 381,556.65, 572,415.93 and 144,894.09
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Solution
The fourth proportional to 381,556.65, 572,415.93 and 144,894.09 is: 217,371.88
Step by Step Solution
- Step 1: Write the proportion equation
381,556.65 : 572,415.93 = 144,894.09 : x - Step 2: Convert to fraction form
381,556.65/572,415.93 = 144,894.09/x - Step 3: Cross multiply
381,556.65x = 572,415.93 × 144,894.09 - Step 4: Simplify right side
381,556.65x = 82,939,685,278.85 - Step 5: Solve for x
x = 82,939,685,278.85/381,556.65 - Step 6: Final answer
x = 217,371.88
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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.