Finding the Fourth Proportional to 578.23, 866.57 and 212.68
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Solution
The fourth proportional to 578.23, 866.57 and 212.68 is: 318.73
Step by Step Solution
- Step 1: Write the proportion equation
578.23 : 866.57 = 212.68 : x - Step 2: Convert to fraction form
578.23/866.57 = 212.68/x - Step 3: Cross multiply
578.23x = 866.57 × 212.68 - Step 4: Simplify right side
578.23x = 184,297.24 - Step 5: Solve for x
x = 184,297.24/578.23 - Step 6: Final answer
x = 318.73
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.