Finding the Fourth Proportional to 457.08, 685.84 and 183.70
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Solution
The fourth proportional to 457.08, 685.84 and 183.70 is: 275.64
Step by Step Solution
- Step 1: Write the proportion equation
457.08 : 685.84 = 183.70 : x - Step 2: Convert to fraction form
457.08/685.84 = 183.70/x - Step 3: Cross multiply
457.08x = 685.84 × 183.70 - Step 4: Simplify right side
457.08x = 125,988.81 - Step 5: Solve for x
x = 125,988.81/457.08 - Step 6: Final answer
x = 275.64
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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.