Finding the Fourth Proportional to 266,026.97, 399,047.34 and 76,479.68
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Solution
The fourth proportional to 266,026.97, 399,047.34 and 76,479.68 is: 114,721.49
Step by Step Solution
- Step 1: Write the proportion equation
266,026.97 : 399,047.34 = 76,479.68 : x - Step 2: Convert to fraction form
266,026.97/399,047.34 = 76,479.68/x - Step 3: Cross multiply
266,026.97x = 399,047.34 × 76,479.68 - Step 4: Simplify right side
266,026.97x = 30,519,010,872.81 - Step 5: Solve for x
x = 30,519,010,872.81/266,026.97 - Step 6: Final answer
x = 114,721.49
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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.