Finding the Fourth Proportional to 279,919.05, 419,878.56 and 92,930.55
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Solution
The fourth proportional to 279,919.05, 419,878.56 and 92,930.55 is: 139,395.82
Step by Step Solution
- Step 1: Write the proportion equation
279,919.05 : 419,878.56 = 92,930.55 : x - Step 2: Convert to fraction form
279,919.05/419,878.56 = 92,930.55/x - Step 3: Cross multiply
279,919.05x = 419,878.56 × 92,930.55 - Step 4: Simplify right side
279,919.05x = 39,019,545,514.01 - Step 5: Solve for x
x = 39,019,545,514.01/279,919.05 - Step 6: Final answer
x = 139,395.82
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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.