Finding the Fourth Proportional to 460.53, 690.69 and 135.99
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Solution
The fourth proportional to 460.53, 690.69 and 135.99 is: 203.95
Step by Step Solution
- Step 1: Write the proportion equation
460.53 : 690.69 = 135.99 : x - Step 2: Convert to fraction form
460.53/690.69 = 135.99/x - Step 3: Cross multiply
460.53x = 690.69 × 135.99 - Step 4: Simplify right side
460.53x = 93,926.93 - Step 5: Solve for x
x = 93,926.93/460.53 - Step 6: Final answer
x = 203.95
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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.