Finding the Fourth Proportional to 198,320.78, 273,681.11 and 107,674.91
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Solution
The fourth proportional to 198,320.78, 273,681.11 and 107,674.91 is: 148,590.53
Step by Step Solution
- Step 1: Write the proportion equation
198,320.78 : 273,681.11 = 107,674.91 : x - Step 2: Convert to fraction form
198,320.78/273,681.11 = 107,674.91/x - Step 3: Cross multiply
198,320.78x = 273,681.11 × 107,674.91 - Step 4: Simplify right side
198,320.78x = 29,468,589,584.76 - Step 5: Solve for x
x = 29,468,589,584.76/198,320.78 - Step 6: Final answer
x = 148,590.53
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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.