Finding the Fourth Proportional to 323,134.16, 484,694.28 and 86,476.80
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Solution
The fourth proportional to 323,134.16, 484,694.28 and 86,476.80 is: 129,713.34
Step by Step Solution
- Step 1: Write the proportion equation
323,134.16 : 484,694.28 = 86,476.80 : x - Step 2: Convert to fraction form
323,134.16/484,694.28 = 86,476.80/x - Step 3: Cross multiply
323,134.16x = 484,694.28 × 86,476.80 - Step 4: Simplify right side
323,134.16x = 41,914,810,312.70 - Step 5: Solve for x
x = 41,914,810,312.70/323,134.16 - Step 6: Final answer
x = 129,713.34
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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.