Finding the Fourth Proportional to 465.59, 642.52 and 255.79
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Solution
The fourth proportional to 465.59, 642.52 and 255.79 is: 352.99
Step by Step Solution
- Step 1: Write the proportion equation
465.59 : 642.52 = 255.79 : x - Step 2: Convert to fraction form
465.59/642.52 = 255.79/x - Step 3: Cross multiply
465.59x = 642.52 × 255.79 - Step 4: Simplify right side
465.59x = 164,350.23 - Step 5: Solve for x
x = 164,350.23/465.59 - Step 6: Final answer
x = 352.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.