Finding the Fourth Proportional to 418.36, 577.36 and 252.58
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Solution
The fourth proportional to 418.36, 577.36 and 252.58 is: 348.57
Step by Step Solution
- Step 1: Write the proportion equation
418.36 : 577.36 = 252.58 : x - Step 2: Convert to fraction form
418.36/577.36 = 252.58/x - Step 3: Cross multiply
418.36x = 577.36 × 252.58 - Step 4: Simplify right side
418.36x = 145,829.59 - Step 5: Solve for x
x = 145,829.59/418.36 - Step 6: Final answer
x = 348.57
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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.