Finding the Fourth Proportional to 370.26, 555.80 and 207.99
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Solution
The fourth proportional to 370.26, 555.80 and 207.99 is: 312.21
Step by Step Solution
- Step 1: Write the proportion equation
370.26 : 555.80 = 207.99 : x - Step 2: Convert to fraction form
370.26/555.80 = 207.99/x - Step 3: Cross multiply
370.26x = 555.80 × 207.99 - Step 4: Simplify right side
370.26x = 115,599.80 - Step 5: Solve for x
x = 115,599.80/370.26 - Step 6: Final answer
x = 312.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.