Finding the Fourth Proportional to 188,432.64, 260,052.48 and 112,979.52
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Solution
The fourth proportional to 188,432.64, 260,052.48 and 112,979.52 is: 155,920.99
Step by Step Solution
- Step 1: Write the proportion equation
188,432.64 : 260,052.48 = 112,979.52 : x - Step 2: Convert to fraction form
188,432.64/260,052.48 = 112,979.52/x - Step 3: Cross multiply
188,432.64x = 260,052.48 × 112,979.52 - Step 4: Simplify right side
188,432.64x = 29,380,604,365.21 - Step 5: Solve for x
x = 29,380,604,365.21/188,432.64 - Step 6: Final answer
x = 155,920.99
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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.