Finding the Fourth Proportional to 379,430.02, 523,623.99 and 209,675.08
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Solution
The fourth proportional to 379,430.02, 523,623.99 and 209,675.08 is: 289,357.45
Step by Step Solution
- Step 1: Write the proportion equation
379,430.02 : 523,623.99 = 209,675.08 : x - Step 2: Convert to fraction form
379,430.02/523,623.99 = 209,675.08/x - Step 3: Cross multiply
379,430.02x = 523,623.99 × 209,675.08 - Step 4: Simplify right side
379,430.02x = 109,790,901,993.17 - Step 5: Solve for x
x = 109,790,901,993.17/379,430.02 - Step 6: Final answer
x = 289,357.45
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1.5x scale
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.