Finding the Fourth Proportional to 178.18, 245.80 and 133.99
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Solution
The fourth proportional to 178.18, 245.80 and 133.99 is: 184.84
Step by Step Solution
- Step 1: Write the proportion equation
178.18 : 245.80 = 133.99 : x - Step 2: Convert to fraction form
178.18/245.80 = 133.99/x - Step 3: Cross multiply
178.18x = 245.80 × 133.99 - Step 4: Simplify right side
178.18x = 32,934.74 - Step 5: Solve for x
x = 32,934.74/178.18 - Step 6: Final answer
x = 184.84
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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.