Finding the Fourth Proportional to 455.18, 628.09 and 258.67
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Solution
The fourth proportional to 455.18, 628.09 and 258.67 is: 356.92
Step by Step Solution
- Step 1: Write the proportion equation
455.18 : 628.09 = 258.67 : x - Step 2: Convert to fraction form
455.18/628.09 = 258.67/x - Step 3: Cross multiply
455.18x = 628.09 × 258.67 - Step 4: Simplify right side
455.18x = 162,465.82 - Step 5: Solve for x
x = 162,465.82/455.18 - Step 6: Final answer
x = 356.92
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