Finding the Fourth Proportional to 323,119.24, 484,644.48 and 86,485.84
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Solution
The fourth proportional to 323,119.24, 484,644.48 and 86,485.84 is: 129,719.56
Step by Step Solution
- Step 1: Write the proportion equation
323,119.24 : 484,644.48 = 86,485.84 : x - Step 2: Convert to fraction form
323,119.24/484,644.48 = 86,485.84/x - Step 3: Cross multiply
323,119.24x = 484,644.48 × 86,485.84 - Step 4: Simplify right side
323,119.24x = 41,914,884,954.16 - Step 5: Solve for x
x = 41,914,884,954.16/323,119.24 - Step 6: Final answer
x = 129,719.56
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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.