Finding the Fourth Proportional to 178.70, 268.08 and 56.99
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Solution
The fourth proportional to 178.70, 268.08 and 56.99 is: 85.49
Step by Step Solution
- Step 1: Write the proportion equation
178.70 : 268.08 = 56.99 : x - Step 2: Convert to fraction form
178.70/268.08 = 56.99/x - Step 3: Cross multiply
178.70x = 268.08 × 56.99 - Step 4: Simplify right side
178.70x = 15,276.54 - Step 5: Solve for x
x = 15,276.54/178.70 - Step 6: Final answer
x = 85.49
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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.