Finding the Fourth Proportional to 205,208.10, 283,191.94 and 128,730.41
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Solution
The fourth proportional to 205,208.10, 283,191.94 and 128,730.41 is: 177,650.95
Step by Step Solution
- Step 1: Write the proportion equation
205,208.10 : 283,191.94 = 128,730.41 : x - Step 2: Convert to fraction form
205,208.10/283,191.94 = 128,730.41/x - Step 3: Cross multiply
205,208.10x = 283,191.94 × 128,730.41 - Step 4: Simplify right side
205,208.10x = 36,455,413,901.24 - Step 5: Solve for x
x = 36,455,413,901.24/205,208.10 - Step 6: Final answer
x = 177,650.95
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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.