Finding the Fourth Proportional to 98.99, 148.35 and 58.49
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Solution
The fourth proportional to 98.99, 148.35 and 58.49 is: 87.66
Step by Step Solution
- Step 1: Write the proportion equation
98.99 : 148.35 = 58.49 : x - Step 2: Convert to fraction form
98.99/148.35 = 58.49/x - Step 3: Cross multiply
98.99x = 148.35 × 58.49 - Step 4: Simplify right side
98.99x = 8,676.99 - Step 5: Solve for x
x = 8,676.99/98.99 - Step 6: Final answer
x = 87.66
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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.