Finding the Fourth Proportional to 612,197.64, 918,306.99 and 212,851.44
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Solution
The fourth proportional to 612,197.64, 918,306.99 and 212,851.44 is: 319,280.82
Step by Step Solution
- Step 1: Write the proportion equation
612,197.64 : 918,306.99 = 212,851.44 : x - Step 2: Convert to fraction form
612,197.64/918,306.99 = 212,851.44/x - Step 3: Cross multiply
612,197.64x = 918,306.99 × 212,851.44 - Step 4: Simplify right side
612,197.64x = 195,462,965,183.57 - Step 5: Solve for x
x = 195,462,965,183.57/612,197.64 - Step 6: Final answer
x = 319,280.82
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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.