Finding the Fourth Proportional to 370,821.08, 511,743.12 and 209,700.13
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Solution
The fourth proportional to 370,821.08, 511,743.12 and 209,700.13 is: 289,391.85
Step by Step Solution
- Step 1: Write the proportion equation
370,821.08 : 511,743.12 = 209,700.13 : x - Step 2: Convert to fraction form
370,821.08/511,743.12 = 209,700.13/x - Step 3: Cross multiply
370,821.08x = 511,743.12 × 209,700.13 - Step 4: Simplify right side
370,821.08x = 107,312,596,231.89 - Step 5: Solve for x
x = 107,312,596,231.89/370,821.08 - Step 6: Final answer
x = 289,391.85
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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.