Finding the Fourth Proportional to 303.18, 417.08 and 247.79
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Solution
The fourth proportional to 303.18, 417.08 and 247.79 is: 340.89
Step by Step Solution
- Step 1: Write the proportion equation
303.18 : 417.08 = 247.79 : x - Step 2: Convert to fraction form
303.18/417.08 = 247.79/x - Step 3: Cross multiply
303.18x = 417.08 × 247.79 - Step 4: Simplify right side
303.18x = 103,349.92 - Step 5: Solve for x
x = 103,349.92/303.18 - Step 6: Final answer
x = 340.89
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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.