Finding the Fourth Proportional to 415,357.86, 573,385.20 and 243,251.91
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Solution
The fourth proportional to 415,357.86, 573,385.20 and 243,251.91 is: 335,799.70
Step by Step Solution
- Step 1: Write the proportion equation
415,357.86 : 573,385.20 = 243,251.91 : x - Step 2: Convert to fraction form
415,357.86/573,385.20 = 243,251.91/x - Step 3: Cross multiply
415,357.86x = 573,385.20 × 243,251.91 - Step 4: Simplify right side
415,357.86x = 139,477,045,065.73 - Step 5: Solve for x
x = 139,477,045,065.73/415,357.86 - Step 6: Final answer
x = 335,799.70
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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.