Finding the Fourth Proportional to 405.56, 608.18 and 149.08
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Solution
The fourth proportional to 405.56, 608.18 and 149.08 is: 223.56
Step by Step Solution
- Step 1: Write the proportion equation
405.56 : 608.18 = 149.08 : x - Step 2: Convert to fraction form
405.56/608.18 = 149.08/x - Step 3: Cross multiply
405.56x = 608.18 × 149.08 - Step 4: Simplify right side
405.56x = 90,667.47 - Step 5: Solve for x
x = 90,667.47/405.56 - Step 6: Final answer
x = 223.56
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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.