Finding the Fourth Proportional to 299,717.09, 447,389.24 and 261,882.66
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Solution
The fourth proportional to 299,717.09, 447,389.24 and 261,882.66 is: 390,913.59
Step by Step Solution
- Step 1: Write the proportion equation
299,717.09 : 447,389.24 = 261,882.66 : x - Step 2: Convert to fraction form
299,717.09/447,389.24 = 261,882.66/x - Step 3: Cross multiply
299,717.09x = 447,389.24 × 261,882.66 - Step 4: Simplify right side
299,717.09x = 117,163,482,917.17 - Step 5: Solve for x
x = 117,163,482,917.17/299,717.09 - Step 6: Final answer
x = 390,913.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.