Finding the Fourth Proportional to 659.18, 988.70 and 236.99
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Solution
The fourth proportional to 659.18, 988.70 and 236.99 is: 355.46
Step by Step Solution
- Step 1: Write the proportion equation
659.18 : 988.70 = 236.99 : x - Step 2: Convert to fraction form
659.18/988.70 = 236.99/x - Step 3: Cross multiply
659.18x = 988.70 × 236.99 - Step 4: Simplify right side
659.18x = 234,312.01 - Step 5: Solve for x
x = 234,312.01/659.18 - Step 6: Final answer
x = 355.46
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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.