Finding the Fourth Proportional to 383,467.61, 529,161.08 and 211,376.09
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Solution
The fourth proportional to 383,467.61, 529,161.08 and 211,376.09 is: 291,685.65
Step by Step Solution
- Step 1: Write the proportion equation
383,467.61 : 529,161.08 = 211,376.09 : x - Step 2: Convert to fraction form
383,467.61/529,161.08 = 211,376.09/x - Step 3: Cross multiply
383,467.61x = 529,161.08 × 211,376.09 - Step 4: Simplify right side
383,467.61x = 111,851,996,367.89 - Step 5: Solve for x
x = 111,851,996,367.89/383,467.61 - Step 6: Final answer
x = 291,685.65
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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.