Finding the Fourth Proportional to 242,138.61, 363,209.74 and 84,366.81
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Solution
The fourth proportional to 242,138.61, 363,209.74 and 84,366.81 is: 126,550.85
Step by Step Solution
- Step 1: Write the proportion equation
242,138.61 : 363,209.74 = 84,366.81 : x - Step 2: Convert to fraction form
242,138.61/363,209.74 = 84,366.81/x - Step 3: Cross multiply
242,138.61x = 363,209.74 × 84,366.81 - Step 4: Simplify right side
242,138.61x = 30,642,846,913.81 - Step 5: Solve for x
x = 30,642,846,913.81/242,138.61 - Step 6: Final answer
x = 126,550.85
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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.