Finding the Fourth Proportional to 322.77, 444.99 and 315.87
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Solution
The fourth proportional to 322.77, 444.99 and 315.87 is: 435.48
Step by Step Solution
- Step 1: Write the proportion equation
322.77 : 444.99 = 315.87 : x - Step 2: Convert to fraction form
322.77/444.99 = 315.87/x - Step 3: Cross multiply
322.77x = 444.99 × 315.87 - Step 4: Simplify right side
322.77x = 140,558.99 - Step 5: Solve for x
x = 140,558.99/322.77 - Step 6: Final answer
x = 435.48
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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.