Finding the Fourth Proportional to 392.26, 588.44 and 135.76
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Solution
The fourth proportional to 392.26, 588.44 and 135.76 is: 203.66
Step by Step Solution
- Step 1: Write the proportion equation
392.26 : 588.44 = 135.76 : x - Step 2: Convert to fraction form
392.26/588.44 = 135.76/x - Step 3: Cross multiply
392.26x = 588.44 × 135.76 - Step 4: Simplify right side
392.26x = 79,886.61 - Step 5: Solve for x
x = 79,886.61/392.26 - Step 6: Final answer
x = 203.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.