Finding the Fourth Proportional to 330.57, 455.99 and 214.13
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Solution
The fourth proportional to 330.57, 455.99 and 214.13 is: 295.37
Step by Step Solution
- Step 1: Write the proportion equation
330.57 : 455.99 = 214.13 : x - Step 2: Convert to fraction form
330.57/455.99 = 214.13/x - Step 3: Cross multiply
330.57x = 455.99 × 214.13 - Step 4: Simplify right side
330.57x = 97,641.21 - Step 5: Solve for x
x = 97,641.21/330.57 - Step 6: Final answer
x = 295.37
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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.