Finding the Fourth Proportional to 490.08, 735.20 and 148
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Solution
The fourth proportional to 490.08, 735.20 and 148 is: 222.02
Step by Step Solution
- Step 1: Write the proportion equation
490.08 : 735.20 = 148 : x - Step 2: Convert to fraction form
490.08/735.20 = 148/x - Step 3: Cross multiply
490.08x = 735.20 × 148 - Step 4: Simplify right side
490.08x = 108,809.60 - Step 5: Solve for x
x = 108,809.60/490.08 - Step 6: Final answer
x = 222.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.