Finding the Fourth Proportional to 399.18, 598.36 and 193.44
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Solution
The fourth proportional to 399.18, 598.36 and 193.44 is: 289.96
Step by Step Solution
- Step 1: Write the proportion equation
399.18 : 598.36 = 193.44 : x - Step 2: Convert to fraction form
399.18/598.36 = 193.44/x - Step 3: Cross multiply
399.18x = 598.36 × 193.44 - Step 4: Simplify right side
399.18x = 115,746.76 - Step 5: Solve for x
x = 115,746.76/399.18 - Step 6: Final answer
x = 289.96
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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.