Finding the Fourth Proportional to 455.95, 629.19 and 259.44
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Solution
The fourth proportional to 455.95, 629.19 and 259.44 is: 358.02
Step by Step Solution
- Step 1: Write the proportion equation
455.95 : 629.19 = 259.44 : x - Step 2: Convert to fraction form
455.95/629.19 = 259.44/x - Step 3: Cross multiply
455.95x = 629.19 × 259.44 - Step 4: Simplify right side
455.95x = 163,237.05 - Step 5: Solve for x
x = 163,237.05/455.95 - Step 6: Final answer
x = 358.02
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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.