Finding the Fourth Proportional to 135.07, 202.63 and 38.88
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Solution
The fourth proportional to 135.07, 202.63 and 38.88 is: 58.32
Step by Step Solution
- Step 1: Write the proportion equation
135.07 : 202.63 = 38.88 : x - Step 2: Convert to fraction form
135.07/202.63 = 38.88/x - Step 3: Cross multiply
135.07x = 202.63 × 38.88 - Step 4: Simplify right side
135.07x = 7,877.24 - Step 5: Solve for x
x = 7,877.24/135.07 - Step 6: Final answer
x = 58.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.