Finding the Fourth Proportional to 306,821.50, 423,051.36 and 210,072.26
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Solution
The fourth proportional to 306,821.50, 423,051.36 and 210,072.26 is: 289,651.66
Step by Step Solution
- Step 1: Write the proportion equation
306,821.50 : 423,051.36 = 210,072.26 : x - Step 2: Convert to fraction form
306,821.50/423,051.36 = 210,072.26/x - Step 3: Cross multiply
306,821.50x = 423,051.36 × 210,072.26 - Step 4: Simplify right side
306,821.50x = 88,871,355,291.27 - Step 5: Solve for x
x = 88,871,355,291.27/306,821.50 - Step 6: Final answer
x = 289,651.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.