Finding the Fourth Proportional to 223,732.99, 308,905.99 and 209,440.14
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Solution
The fourth proportional to 223,732.99, 308,905.99 and 209,440.14 is: 289,171.99
Step by Step Solution
- Step 1: Write the proportion equation
223,732.99 : 308,905.99 = 209,440.14 : x - Step 2: Convert to fraction form
223,732.99/308,905.99 = 209,440.14/x - Step 3: Cross multiply
223,732.99x = 308,905.99 × 209,440.14 - Step 4: Simplify right side
223,732.99x = 64,697,313,792.44 - Step 5: Solve for x
x = 64,697,313,792.44/223,732.99 - Step 6: Final answer
x = 289,171.99
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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.