Finding the Fourth Proportional to 189,287.67, 261,220.11 and 103,246.68
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Solution
The fourth proportional to 189,287.67, 261,220.11 and 103,246.68 is: 142,482.12
Step by Step Solution
- Step 1: Write the proportion equation
189,287.67 : 261,220.11 = 103,246.68 : x - Step 2: Convert to fraction form
189,287.67/261,220.11 = 103,246.68/x - Step 3: Cross multiply
189,287.67x = 261,220.11 × 103,246.68 - Step 4: Simplify right side
189,287.67x = 26,970,109,106.73 - Step 5: Solve for x
x = 26,970,109,106.73/189,287.67 - Step 6: Final answer
x = 142,482.12
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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.