Finding the Fourth Proportional to 373.68, 515.63 and 207.88
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Solution
The fourth proportional to 373.68, 515.63 and 207.88 is: 286.85
Step by Step Solution
- Step 1: Write the proportion equation
373.68 : 515.63 = 207.88 : x - Step 2: Convert to fraction form
373.68/515.63 = 207.88/x - Step 3: Cross multiply
373.68x = 515.63 × 207.88 - Step 4: Simplify right side
373.68x = 107,188.40 - Step 5: Solve for x
x = 107,188.40/373.68 - Step 6: Final answer
x = 286.85
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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.