Finding the Fourth Proportional to 379,036.68, 523,070.28 and 209,271.84
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Solution
The fourth proportional to 379,036.68, 523,070.28 and 209,271.84 is: 288,794.95
Step by Step Solution
- Step 1: Write the proportion equation
379,036.68 : 523,070.28 = 209,271.84 : x - Step 2: Convert to fraction form
379,036.68/523,070.28 = 209,271.84/x - Step 3: Cross multiply
379,036.68x = 523,070.28 × 209,271.84 - Step 4: Simplify right side
379,036.68x = 109,463,879,944.92 - Step 5: Solve for x
x = 109,463,879,944.92/379,036.68 - Step 6: Final answer
x = 288,794.95
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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.