Finding the Fourth Proportional to 165,349.13, 247,997.12 and 45,378.05
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Solution
The fourth proportional to 165,349.13, 247,997.12 and 45,378.05 is: 68,059.78
Step by Step Solution
- Step 1: Write the proportion equation
165,349.13 : 247,997.12 = 45,378.05 : x - Step 2: Convert to fraction form
165,349.13/247,997.12 = 45,378.05/x - Step 3: Cross multiply
165,349.13x = 247,997.12 × 45,378.05 - Step 4: Simplify right side
165,349.13x = 11,253,624,977.78 - Step 5: Solve for x
x = 11,253,624,977.78/165,349.13 - Step 6: Final answer
x = 68,059.78
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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.