Finding the Fourth Proportional to 513,917.36, 770,820.64 and 134,876.09
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Solution
The fourth proportional to 513,917.36, 770,820.64 and 134,876.09 is: 202,299.59
Step by Step Solution
- Step 1: Write the proportion equation
513,917.36 : 770,820.64 = 134,876.09 : x - Step 2: Convert to fraction form
513,917.36/770,820.64 = 134,876.09/x - Step 3: Cross multiply
513,917.36x = 770,820.64 × 134,876.09 - Step 4: Simplify right side
513,917.36x = 103,965,269,823.20 - Step 5: Solve for x
x = 103,965,269,823.20/513,917.36 - Step 6: Final answer
x = 202,299.59
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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.