Finding the Fourth Proportional to 460.15, 690.09 and 135.41
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Solution
The fourth proportional to 460.15, 690.09 and 135.41 is: 203.07
Step by Step Solution
- Step 1: Write the proportion equation
460.15 : 690.09 = 135.41 : x - Step 2: Convert to fraction form
460.15/690.09 = 135.41/x - Step 3: Cross multiply
460.15x = 690.09 × 135.41 - Step 4: Simplify right side
460.15x = 93,441.13 - Step 5: Solve for x
x = 93,441.13/460.15 - Step 6: Final answer
x = 203.07
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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.