Finding the Fourth Proportional to 305.62, 458.45 and 122.99
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Solution
The fourth proportional to 305.62, 458.45 and 122.99 is: 184.49
Step by Step Solution
- Step 1: Write the proportion equation
305.62 : 458.45 = 122.99 : x - Step 2: Convert to fraction form
305.62/458.45 = 122.99/x - Step 3: Cross multiply
305.62x = 458.45 × 122.99 - Step 4: Simplify right side
305.62x = 56,384.77 - Step 5: Solve for x
x = 56,384.77/305.62 - Step 6: Final answer
x = 184.49
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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.