Finding the Fourth Proportional to 211,447.80, 317,140.68 and 61,647.84
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Solution
The fourth proportional to 211,447.80, 317,140.68 and 61,647.84 is: 92,462.72
Step by Step Solution
- Step 1: Write the proportion equation
211,447.80 : 317,140.68 = 61,647.84 : x - Step 2: Convert to fraction form
211,447.80/317,140.68 = 61,647.84/x - Step 3: Cross multiply
211,447.80x = 317,140.68 × 61,647.84 - Step 4: Simplify right side
211,447.80x = 19,551,037,898.13 - Step 5: Solve for x
x = 19,551,037,898.13/211,447.80 - Step 6: Final answer
x = 92,462.72
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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.