Finding the Fourth Proportional to 383.91, 530.42 and 267.99
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Solution
The fourth proportional to 383.91, 530.42 and 267.99 is: 370.26
Step by Step Solution
- Step 1: Write the proportion equation
383.91 : 530.42 = 267.99 : x - Step 2: Convert to fraction form
383.91/530.42 = 267.99/x - Step 3: Cross multiply
383.91x = 530.42 × 267.99 - Step 4: Simplify right side
383.91x = 142,145.92 - Step 5: Solve for x
x = 142,145.92/383.91 - Step 6: Final answer
x = 370.26
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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.