Finding the Fourth Proportional to 147.10, 203.08 and 98.02
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Solution
The fourth proportional to 147.10, 203.08 and 98.02 is: 135.32
Step by Step Solution
- Step 1: Write the proportion equation
147.10 : 203.08 = 98.02 : x - Step 2: Convert to fraction form
147.10/203.08 = 98.02/x - Step 3: Cross multiply
147.10x = 203.08 × 98.02 - Step 4: Simplify right side
147.10x = 19,905.90 - Step 5: Solve for x
x = 19,905.90/147.10 - Step 6: Final answer
x = 135.32
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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.