Finding the Fourth Proportional to 430,754.12, 646,131.02 and 115,202.84
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Solution
The fourth proportional to 430,754.12, 646,131.02 and 115,202.84 is: 172,804.22
Step by Step Solution
- Step 1: Write the proportion equation
430,754.12 : 646,131.02 = 115,202.84 : x - Step 2: Convert to fraction form
430,754.12/646,131.02 = 115,202.84/x - Step 3: Cross multiply
430,754.12x = 646,131.02 × 115,202.84 - Step 4: Simplify right side
430,754.12x = 74,436,128,516.10 - Step 5: Solve for x
x = 74,436,128,516.10/430,754.12 - Step 6: Final answer
x = 172,804.22
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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.