Finding the Fourth Proportional to 313,958.40, 470,246.40 and 272,486.40
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Solution
The fourth proportional to 313,958.40, 470,246.40 and 272,486.40 is: 408,129.70
Step by Step Solution
- Step 1: Write the proportion equation
313,958.40 : 470,246.40 = 272,486.40 : x - Step 2: Convert to fraction form
313,958.40/470,246.40 = 272,486.40/x - Step 3: Cross multiply
313,958.40x = 470,246.40 × 272,486.40 - Step 4: Simplify right side
313,958.40x = 128,135,748,648.96 - Step 5: Solve for x
x = 128,135,748,648.96/313,958.40 - Step 6: Final answer
x = 408,129.70
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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.