Finding the Fourth Proportional to 369,120.24, 509,379.84 and 207,991.80
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Solution
The fourth proportional to 369,120.24, 509,379.84 and 207,991.80 is: 287,025.25
Step by Step Solution
- Step 1: Write the proportion equation
369,120.24 : 509,379.84 = 207,991.80 : x - Step 2: Convert to fraction form
369,120.24/509,379.84 = 207,991.80/x - Step 3: Cross multiply
369,120.24x = 509,379.84 × 207,991.80 - Step 4: Simplify right side
369,120.24x = 105,946,829,805.31 - Step 5: Solve for x
x = 105,946,829,805.31/369,120.24 - Step 6: Final answer
x = 287,025.25
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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.