Finding the Fourth Proportional to 205,209.22, 283,193.49 and 128,731.53
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Solution
The fourth proportional to 205,209.22, 283,193.49 and 128,731.53 is: 177,652.50
Step by Step Solution
- Step 1: Write the proportion equation
205,209.22 : 283,193.49 = 128,731.53 : x - Step 2: Convert to fraction form
205,209.22/283,193.49 = 128,731.53/x - Step 3: Cross multiply
205,209.22x = 283,193.49 × 128,731.53 - Step 4: Simplify right side
205,209.22x = 36,455,931,253.74 - Step 5: Solve for x
x = 36,455,931,253.74/205,209.22 - Step 6: Final answer
x = 177,652.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.