Finding the Fourth Proportional to 205,378.79, 307,318.79 and 121,179.29
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Solution
The fourth proportional to 205,378.79, 307,318.79 and 121,179.29 is: 181,326.77
Step by Step Solution
- Step 1: Write the proportion equation
205,378.79 : 307,318.79 = 121,179.29 : x - Step 2: Convert to fraction form
205,378.79/307,318.79 = 121,179.29/x - Step 3: Cross multiply
205,378.79x = 307,318.79 × 121,179.29 - Step 4: Simplify right side
205,378.79x = 37,240,671,542.21 - Step 5: Solve for x
x = 37,240,671,542.21/205,378.79 - Step 6: Final answer
x = 181,326.77
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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.