Finding the Fourth Proportional to 293.14, 438.75 and 261.14
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Solution
The fourth proportional to 293.14, 438.75 and 261.14 is: 390.85
Step by Step Solution
- Step 1: Write the proportion equation
293.14 : 438.75 = 261.14 : x - Step 2: Convert to fraction form
293.14/438.75 = 261.14/x - Step 3: Cross multiply
293.14x = 438.75 × 261.14 - Step 4: Simplify right side
293.14x = 114,575.18 - Step 5: Solve for x
x = 114,575.18/293.14 - Step 6: Final answer
x = 390.85
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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.