Finding the Fourth Proportional to 405.23, 607.62 and 161.69
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Solution
The fourth proportional to 405.23, 607.62 and 161.69 is: 242.45
Step by Step Solution
- Step 1: Write the proportion equation
405.23 : 607.62 = 161.69 : x - Step 2: Convert to fraction form
405.23/607.62 = 161.69/x - Step 3: Cross multiply
405.23x = 607.62 × 161.69 - Step 4: Simplify right side
405.23x = 98,246.08 - Step 5: Solve for x
x = 98,246.08/405.23 - Step 6: Final answer
x = 242.45
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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.