Finding the Fourth Proportional to 468.92, 646.99 and 272.40
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Solution
The fourth proportional to 468.92, 646.99 and 272.40 is: 375.83
Step by Step Solution
- Step 1: Write the proportion equation
468.92 : 646.99 = 272.40 : x - Step 2: Convert to fraction form
468.92/646.99 = 272.40/x - Step 3: Cross multiply
468.92x = 646.99 × 272.40 - Step 4: Simplify right side
468.92x = 176,236.97 - Step 5: Solve for x
x = 176,236.97/468.92 - Step 6: Final answer
x = 375.83
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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.