Finding the Fourth Proportional to 453.18, 624.99 and 305.80
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Solution
The fourth proportional to 453.18, 624.99 and 305.80 is: 421.74
Step by Step Solution
- Step 1: Write the proportion equation
453.18 : 624.99 = 305.80 : x - Step 2: Convert to fraction form
453.18/624.99 = 305.80/x - Step 3: Cross multiply
453.18x = 624.99 × 305.80 - Step 4: Simplify right side
453.18x = 191,121.94 - Step 5: Solve for x
x = 191,121.94/453.18 - Step 6: Final answer
x = 421.74
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