Finding the Fourth Proportional to 193,340.80, 289,924.80 and 74,972.80
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Solution
The fourth proportional to 193,340.80, 289,924.80 and 74,972.80 is: 112,425.70
Step by Step Solution
- Step 1: Write the proportion equation
193,340.80 : 289,924.80 = 74,972.80 : x - Step 2: Convert to fraction form
193,340.80/289,924.80 = 74,972.80/x - Step 3: Cross multiply
193,340.80x = 289,924.80 × 74,972.80 - Step 4: Simplify right side
193,340.80x = 21,736,474,045.44 - Step 5: Solve for x
x = 21,736,474,045.44/193,340.80 - Step 6: Final answer
x = 112,425.70
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1.5x scale
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.