Finding the Fourth Proportional to 426,085.20, 639,126.98 and 248,467.65
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Solution
The fourth proportional to 426,085.20, 639,126.98 and 248,467.65 is: 372,700.99
Step by Step Solution
- Step 1: Write the proportion equation
426,085.20 : 639,126.98 = 248,467.65 : x - Step 2: Convert to fraction form
426,085.20/639,126.98 = 248,467.65/x - Step 3: Cross multiply
426,085.20x = 639,126.98 × 248,467.65 - Step 4: Simplify right side
426,085.20x = 158,802,377,529.86 - Step 5: Solve for x
x = 158,802,377,529.86/426,085.20 - Step 6: Final answer
x = 372,700.99
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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.