Finding the Fourth Proportional to 415,705.70, 623,742.15 and 202,355.30
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Solution
The fourth proportional to 415,705.70, 623,742.15 and 202,355.30 is: 303,622.32
Step by Step Solution
- Step 1: Write the proportion equation
415,705.70 : 623,742.15 = 202,355.30 : x - Step 2: Convert to fraction form
415,705.70/623,742.15 = 202,355.30/x - Step 3: Cross multiply
415,705.70x = 623,742.15 × 202,355.30 - Step 4: Simplify right side
415,705.70x = 126,217,529,885.90 - Step 5: Solve for x
x = 126,217,529,885.90/415,705.70 - Step 6: Final answer
x = 303,622.32
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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.