Finding the Fourth Proportional to 212,718.43, 318,964.74 and 62,938.09
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Solution
The fourth proportional to 212,718.43, 318,964.74 and 62,938.09 is: 94,373.73
Step by Step Solution
- Step 1: Write the proportion equation
212,718.43 : 318,964.74 = 62,938.09 : x - Step 2: Convert to fraction form
212,718.43/318,964.74 = 62,938.09/x - Step 3: Cross multiply
212,718.43x = 318,964.74 × 62,938.09 - Step 4: Simplify right side
212,718.43x = 20,075,031,512.95 - Step 5: Solve for x
x = 20,075,031,512.95/212,718.43 - Step 6: Final answer
x = 94,373.73
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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.