Finding the Fourth Proportional to 513,498.24, 770,286.24 and 139,515.84
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Solution
The fourth proportional to 513,498.24, 770,286.24 and 139,515.84 is: 209,284.32
Step by Step Solution
- Step 1: Write the proportion equation
513,498.24 : 770,286.24 = 139,515.84 : x - Step 2: Convert to fraction form
513,498.24/770,286.24 = 139,515.84/x - Step 3: Cross multiply
513,498.24x = 770,286.24 × 139,515.84 - Step 4: Simplify right side
513,498.24x = 107,467,131,814.04 - Step 5: Solve for x
x = 107,467,131,814.04/513,498.24 - Step 6: Final answer
x = 209,284.32
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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.