Finding the Fourth Proportional to 435.28, 652.08 and 386.68
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Solution
The fourth proportional to 435.28, 652.08 and 386.68 is: 579.27
Step by Step Solution
- Step 1: Write the proportion equation
435.28 : 652.08 = 386.68 : x - Step 2: Convert to fraction form
435.28/652.08 = 386.68/x - Step 3: Cross multiply
435.28x = 652.08 × 386.68 - Step 4: Simplify right side
435.28x = 252,146.29 - Step 5: Solve for x
x = 252,146.29/435.28 - Step 6: Final answer
x = 579.27
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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.