Finding the Fourth Proportional to 178.71, 246.62 and 98.95
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Solution
The fourth proportional to 178.71, 246.62 and 98.95 is: 136.55
Step by Step Solution
- Step 1: Write the proportion equation
178.71 : 246.62 = 98.95 : x - Step 2: Convert to fraction form
178.71/246.62 = 98.95/x - Step 3: Cross multiply
178.71x = 246.62 × 98.95 - Step 4: Simplify right side
178.71x = 24,402.55 - Step 5: Solve for x
x = 24,402.55/178.71 - Step 6: Final answer
x = 136.55
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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.