Finding the Fourth Proportional to 378,811.58, 568,203.53 and 112,565.18
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Solution
The fourth proportional to 378,811.58, 568,203.53 and 112,565.18 is: 168,843.65
Step by Step Solution
- Step 1: Write the proportion equation
378,811.58 : 568,203.53 = 112,565.18 : x - Step 2: Convert to fraction form
378,811.58/568,203.53 = 112,565.18/x - Step 3: Cross multiply
378,811.58x = 568,203.53 × 112,565.18 - Step 4: Simplify right side
378,811.58x = 63,959,930,925.80 - Step 5: Solve for x
x = 63,959,930,925.80/378,811.58 - Step 6: Final answer
x = 168,843.65
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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.