Finding the Fourth Proportional to 178.74, 267.98 and 68.99
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Solution
The fourth proportional to 178.74, 267.98 and 68.99 is: 103.43
Step by Step Solution
- Step 1: Write the proportion equation
178.74 : 267.98 = 68.99 : x - Step 2: Convert to fraction form
178.74/267.98 = 68.99/x - Step 3: Cross multiply
178.74x = 267.98 × 68.99 - Step 4: Simplify right side
178.74x = 18,486.26 - Step 5: Solve for x
x = 18,486.26/178.74 - Step 6: Final answer
x = 103.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.