Finding the Fourth Proportional to 207,385.56, 286,087.68 and 121,288.23
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Solution
The fourth proportional to 207,385.56, 286,087.68 and 121,288.23 is: 167,316.70
Step by Step Solution
- Step 1: Write the proportion equation
207,385.56 : 286,087.68 = 121,288.23 : x - Step 2: Convert to fraction form
207,385.56/286,087.68 = 121,288.23/x - Step 3: Cross multiply
207,385.56x = 286,087.68 × 121,288.23 - Step 4: Simplify right side
207,385.56x = 34,699,068,332.01 - Step 5: Solve for x
x = 34,699,068,332.01/207,385.56 - Step 6: Final answer
x = 167,316.70
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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.