Finding the Fourth Proportional to 245,744.80, 368,617.20 and 121,328.80
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Solution
The fourth proportional to 245,744.80, 368,617.20 and 121,328.80 is: 181,993.20
Step by Step Solution
- Step 1: Write the proportion equation
245,744.80 : 368,617.20 = 121,328.80 : x - Step 2: Convert to fraction form
245,744.80/368,617.20 = 121,328.80/x - Step 3: Cross multiply
245,744.80x = 368,617.20 × 121,328.80 - Step 4: Simplify right side
245,744.80x = 44,723,882,535.36 - Step 5: Solve for x
x = 44,723,882,535.36/245,744.80 - Step 6: Final answer
x = 181,993.20
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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.