Finding the Fourth Proportional to 212,479.12, 318,644.39 and 62,679.63
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Solution
The fourth proportional to 212,479.12, 318,644.39 and 62,679.63 is: 93,997.53
Step by Step Solution
- Step 1: Write the proportion equation
212,479.12 : 318,644.39 = 62,679.63 : x - Step 2: Convert to fraction form
212,479.12/318,644.39 = 62,679.63/x - Step 3: Cross multiply
212,479.12x = 318,644.39 × 62,679.63 - Step 4: Simplify right side
212,479.12x = 19,972,512,466.78 - Step 5: Solve for x
x = 19,972,512,466.78/212,479.12 - Step 6: Final answer
x = 93,997.53
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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.