Finding the Fourth Proportional to 266,014.10, 399,021.61 and 213,042.99
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Solution
The fourth proportional to 266,014.10, 399,021.61 and 213,042.99 is: 319,564.85
Step by Step Solution
- Step 1: Write the proportion equation
266,014.10 : 399,021.61 = 213,042.99 : x - Step 2: Convert to fraction form
266,014.10/399,021.61 = 213,042.99/x - Step 3: Cross multiply
266,014.10x = 399,021.61 × 213,042.99 - Step 4: Simplify right side
266,014.10x = 85,008,756,869.01 - Step 5: Solve for x
x = 85,008,756,869.01/266,014.10 - Step 6: Final answer
x = 319,564.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.