Finding the Fourth Proportional to 421,371.63, 581,488.88 and 230,382.99
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Solution
The fourth proportional to 421,371.63, 581,488.88 and 230,382.99 is: 317,926.35
Step by Step Solution
- Step 1: Write the proportion equation
421,371.63 : 581,488.88 = 230,382.99 : x - Step 2: Convert to fraction form
421,371.63/581,488.88 = 230,382.99/x - Step 3: Cross multiply
421,371.63x = 581,488.88 × 230,382.99 - Step 4: Simplify right side
421,371.63x = 133,965,145,674.24 - Step 5: Solve for x
x = 133,965,145,674.24/421,371.63 - Step 6: Final answer
x = 317,926.35
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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.