Finding the Fourth Proportional to 305.99, 422.09 and 223.00
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Solution
The fourth proportional to 305.99, 422.09 and 223.00 is: 307.61
Step by Step Solution
- Step 1: Write the proportion equation
305.99 : 422.09 = 223.00 : x - Step 2: Convert to fraction form
305.99/422.09 = 223.00/x - Step 3: Cross multiply
305.99x = 422.09 × 223.00 - Step 4: Simplify right side
305.99x = 94,124.74 - Step 5: Solve for x
x = 94,124.74/305.99 - Step 6: Final answer
x = 307.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.