Finding the Fourth Proportional to 667,419.84, 1,001,121.36 and 161,985
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Solution
The fourth proportional to 667,419.84, 1,001,121.36 and 161,985 is: 242,975.46
Step by Step Solution
- Step 1: Write the proportion equation
667,419.84 : 1,001,121.36 = 161,985 : x - Step 2: Convert to fraction form
667,419.84/1,001,121.36 = 161,985/x - Step 3: Cross multiply
667,419.84x = 1,001,121.36 × 161,985 - Step 4: Simplify right side
667,419.84x = 162,166,643,499.60 - Step 5: Solve for x
x = 162,166,643,499.60/667,419.84 - Step 6: Final answer
x = 242,975.46
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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.