Finding the Fourth Proportional to 247.60, 372.94 and 207.64
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Solution
The fourth proportional to 247.60, 372.94 and 207.64 is: 312.75
Step by Step Solution
- Step 1: Write the proportion equation
247.60 : 372.94 = 207.64 : x - Step 2: Convert to fraction form
247.60/372.94 = 207.64/x - Step 3: Cross multiply
247.60x = 372.94 × 207.64 - Step 4: Simplify right side
247.60x = 77,437.26 - Step 5: Solve for x
x = 77,437.26/247.60 - Step 6: Final answer
x = 312.75
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.