Finding the Fourth Proportional to 402.68, 555.36 and 269.96
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Solution
The fourth proportional to 402.68, 555.36 and 269.96 is: 372.32
Step by Step Solution
- Step 1: Write the proportion equation
402.68 : 555.36 = 269.96 : x - Step 2: Convert to fraction form
402.68/555.36 = 269.96/x - Step 3: Cross multiply
402.68x = 555.36 × 269.96 - Step 4: Simplify right side
402.68x = 149,924.99 - Step 5: Solve for x
x = 149,924.99/402.68 - Step 6: Final answer
x = 372.32
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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.