Finding the Fourth Proportional to 438.08, 656.84 and 177.93
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Solution
The fourth proportional to 438.08, 656.84 and 177.93 is: 266.79
Step by Step Solution
- Step 1: Write the proportion equation
438.08 : 656.84 = 177.93 : x - Step 2: Convert to fraction form
438.08/656.84 = 177.93/x - Step 3: Cross multiply
438.08x = 656.84 × 177.93 - Step 4: Simplify right side
438.08x = 116,871.99 - Step 5: Solve for x
x = 116,871.99/438.08 - Step 6: Final answer
x = 266.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.