Finding the Fourth Proportional to 398,721.68, 597,980.64 and 118,173.44
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Solution
The fourth proportional to 398,721.68, 597,980.64 and 118,173.44 is: 177,229.96
Step by Step Solution
- Step 1: Write the proportion equation
398,721.68 : 597,980.64 = 118,173.44 : x - Step 2: Convert to fraction form
398,721.68/597,980.64 = 118,173.44/x - Step 3: Cross multiply
398,721.68x = 597,980.64 × 118,173.44 - Step 4: Simplify right side
398,721.68x = 70,665,429,282.20 - Step 5: Solve for x
x = 70,665,429,282.20/398,721.68 - Step 6: Final answer
x = 177,229.96
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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.