Finding the Fourth Proportional to 438.08, 656.93 and 351.14
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Solution
The fourth proportional to 438.08, 656.93 and 351.14 is: 526.56
Step by Step Solution
- Step 1: Write the proportion equation
438.08 : 656.93 = 351.14 : x - Step 2: Convert to fraction form
438.08/656.93 = 351.14/x - Step 3: Cross multiply
438.08x = 656.93 × 351.14 - Step 4: Simplify right side
438.08x = 230,671.99 - Step 5: Solve for x
x = 230,671.99/438.08 - Step 6: Final answer
x = 526.56
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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.