Finding the Fourth Proportional to 513,867.39, 770,782.56 and 134,785.09
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Solution
The fourth proportional to 513,867.39, 770,782.56 and 134,785.09 is: 202,172.78
Step by Step Solution
- Step 1: Write the proportion equation
513,867.39 : 770,782.56 = 134,785.09 : x - Step 2: Convert to fraction form
513,867.39/770,782.56 = 134,785.09/x - Step 3: Cross multiply
513,867.39x = 770,782.56 × 134,785.09 - Step 4: Simplify right side
513,867.39x = 103,889,996,720.03 - Step 5: Solve for x
x = 103,889,996,720.03/513,867.39 - Step 6: Final answer
x = 202,172.78
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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.