Finding the Fourth Proportional to 415,730.20, 623,778.90 and 202,379.80
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Solution
The fourth proportional to 415,730.20, 623,778.90 and 202,379.80 is: 303,659.08
Step by Step Solution
- Step 1: Write the proportion equation
415,730.20 : 623,778.90 = 202,379.80 : x - Step 2: Convert to fraction form
415,730.20/623,778.90 = 202,379.80/x - Step 3: Cross multiply
415,730.20x = 623,778.90 × 202,379.80 - Step 4: Simplify right side
415,730.20x = 126,240,249,026.22 - Step 5: Solve for x
x = 126,240,249,026.22/415,730.20 - Step 6: Final answer
x = 303,659.08
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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.