Finding the Fourth Proportional to 519.23, 716.52 and 283.18
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Solution
The fourth proportional to 519.23, 716.52 and 283.18 is: 390.78
Step by Step Solution
- Step 1: Write the proportion equation
519.23 : 716.52 = 283.18 : x - Step 2: Convert to fraction form
519.23/716.52 = 283.18/x - Step 3: Cross multiply
519.23x = 716.52 × 283.18 - Step 4: Simplify right side
519.23x = 202,904.13 - Step 5: Solve for x
x = 202,904.13/519.23 - Step 6: Final answer
x = 390.78
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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.