Finding the Fourth Proportional to 211,361.12, 317,037.06 and 51,437.78
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Solution
The fourth proportional to 211,361.12, 317,037.06 and 51,437.78 is: 77,155.55
Step by Step Solution
- Step 1: Write the proportion equation
211,361.12 : 317,037.06 = 51,437.78 : x - Step 2: Convert to fraction form
211,361.12/317,037.06 = 51,437.78/x - Step 3: Cross multiply
211,361.12x = 317,037.06 × 51,437.78 - Step 4: Simplify right side
211,361.12x = 16,307,682,544.13 - Step 5: Solve for x
x = 16,307,682,544.13/211,361.12 - Step 6: Final answer
x = 77,155.55
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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.