Finding the Fourth Proportional to 198,803.84, 297,979.68 and 103,887.68
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Solution
The fourth proportional to 198,803.84, 297,979.68 and 103,887.68 is: 155,713.38
Step by Step Solution
- Step 1: Write the proportion equation
198,803.84 : 297,979.68 = 103,887.68 : x - Step 2: Convert to fraction form
198,803.84/297,979.68 = 103,887.68/x - Step 3: Cross multiply
198,803.84x = 297,979.68 × 103,887.68 - Step 4: Simplify right side
198,803.84x = 30,956,417,642.34 - Step 5: Solve for x
x = 30,956,417,642.34/198,803.84 - Step 6: Final answer
x = 155,713.38
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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.