Finding the Fourth Proportional to 385,331.68, 578,046.75 and 148,742.02
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Solution
The fourth proportional to 385,331.68, 578,046.75 and 148,742.02 is: 223,132.03
Step by Step Solution
- Step 1: Write the proportion equation
385,331.68 : 578,046.75 = 148,742.02 : x - Step 2: Convert to fraction form
385,331.68/578,046.75 = 148,742.02/x - Step 3: Cross multiply
385,331.68x = 578,046.75 × 148,742.02 - Step 4: Simplify right side
385,331.68x = 85,979,841,249.44 - Step 5: Solve for x
x = 85,979,841,249.44/385,331.68 - Step 6: Final answer
x = 223,132.03
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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.