Finding the Fourth Proportional to 379,758.99, 524,057.04 and 209,987.31
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Solution
The fourth proportional to 379,758.99, 524,057.04 and 209,987.31 is: 289,776.76
Step by Step Solution
- Step 1: Write the proportion equation
379,758.99 : 524,057.04 = 209,987.31 : x - Step 2: Convert to fraction form
379,758.99/524,057.04 = 209,987.31/x - Step 3: Cross multiply
379,758.99x = 524,057.04 × 209,987.31 - Step 4: Simplify right side
379,758.99x = 110,045,328,116.16 - Step 5: Solve for x
x = 110,045,328,116.16/379,758.99 - Step 6: Final answer
x = 289,776.76
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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.