Finding the Fourth Proportional to 212,462.71, 318,745.56 and 62,699.70
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Solution
The fourth proportional to 212,462.71, 318,745.56 and 62,699.70 is: 94,064.75
Step by Step Solution
- Step 1: Write the proportion equation
212,462.71 : 318,745.56 = 62,699.70 : x - Step 2: Convert to fraction form
212,462.71/318,745.56 = 62,699.70/x - Step 3: Cross multiply
212,462.71x = 318,745.56 × 62,699.70 - Step 4: Simplify right side
212,462.71x = 19,985,250,988.33 - Step 5: Solve for x
x = 19,985,250,988.33/212,462.71 - Step 6: Final answer
x = 94,064.75
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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.