Finding the Fourth Proportional to 381.36, 526.14 and 346.26
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Solution
The fourth proportional to 381.36, 526.14 and 346.26 is: 477.71
Step by Step Solution
- Step 1: Write the proportion equation
381.36 : 526.14 = 346.26 : x - Step 2: Convert to fraction form
381.36/526.14 = 346.26/x - Step 3: Cross multiply
381.36x = 526.14 × 346.26 - Step 4: Simplify right side
381.36x = 182,181.24 - Step 5: Solve for x
x = 182,181.24/381.36 - Step 6: Final answer
x = 477.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.