Finding the Fourth Proportional to 513,351.24, 770,021.96 and 139,374.24
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Solution
The fourth proportional to 513,351.24, 770,021.96 and 139,374.24 is: 209,060.03
Step by Step Solution
- Step 1: Write the proportion equation
513,351.24 : 770,021.96 = 139,374.24 : x - Step 2: Convert to fraction form
513,351.24/770,021.96 = 139,374.24/x - Step 3: Cross multiply
513,351.24x = 770,021.96 × 139,374.24 - Step 4: Simplify right side
513,351.24x = 107,321,225,458.31 - Step 5: Solve for x
x = 107,321,225,458.31/513,351.24 - Step 6: Final answer
x = 209,060.03
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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.