Finding the Fourth Proportional to 466.11, 642.99 and 279.51
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Solution
The fourth proportional to 466.11, 642.99 and 279.51 is: 385.58
Step by Step Solution
- Step 1: Write the proportion equation
466.11 : 642.99 = 279.51 : x - Step 2: Convert to fraction form
466.11/642.99 = 279.51/x - Step 3: Cross multiply
466.11x = 642.99 × 279.51 - Step 4: Simplify right side
466.11x = 179,722.13 - Step 5: Solve for x
x = 179,722.13/466.11 - Step 6: Final answer
x = 385.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.