Finding the Fourth Proportional to 261,998.24, 392,983.58 and 84,505.28
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Solution
The fourth proportional to 261,998.24, 392,983.58 and 84,505.28 is: 126,753.47
Step by Step Solution
- Step 1: Write the proportion equation
261,998.24 : 392,983.58 = 84,505.28 : x - Step 2: Convert to fraction form
261,998.24/392,983.58 = 84,505.28/x - Step 3: Cross multiply
261,998.24x = 392,983.58 × 84,505.28 - Step 4: Simplify right side
261,998.24x = 33,209,185,709.65 - Step 5: Solve for x
x = 33,209,185,709.65/261,998.24 - Step 6: Final answer
x = 126,753.47
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1.5x scale
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.