Finding the Fourth Proportional to 189,280.67, 261,198.09 and 112,798.01
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Solution
The fourth proportional to 189,280.67, 261,198.09 and 112,798.01 is: 155,655.75
Step by Step Solution
- Step 1: Write the proportion equation
189,280.67 : 261,198.09 = 112,798.01 : x - Step 2: Convert to fraction form
189,280.67/261,198.09 = 112,798.01/x - Step 3: Cross multiply
189,280.67x = 261,198.09 × 112,798.01 - Step 4: Simplify right side
189,280.67x = 29,462,624,441.30 - Step 5: Solve for x
x = 29,462,624,441.30/189,280.67 - Step 6: Final answer
x = 155,655.75
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1.5x scale
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.