Finding the Fourth Proportional to 212,929.44, 318,869.28 and 133,847.52
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Solution
The fourth proportional to 212,929.44, 318,869.28 and 133,847.52 is: 200,441.34
Step by Step Solution
- Step 1: Write the proportion equation
212,929.44 : 318,869.28 = 133,847.52 : x - Step 2: Convert to fraction form
212,929.44/318,869.28 = 133,847.52/x - Step 3: Cross multiply
212,929.44x = 318,869.28 × 133,847.52 - Step 4: Simplify right side
212,929.44x = 42,679,862,332.19 - Step 5: Solve for x
x = 42,679,862,332.19/212,929.44 - Step 6: Final answer
x = 200,441.34
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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.