Finding the Fourth Proportional to 392,684.36, 541,955.00 and 239,690.34
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Solution
The fourth proportional to 392,684.36, 541,955.00 and 239,690.34 is: 330,803.55
Step by Step Solution
- Step 1: Write the proportion equation
392,684.36 : 541,955.00 = 239,690.34 : x - Step 2: Convert to fraction form
392,684.36/541,955.00 = 239,690.34/x - Step 3: Cross multiply
392,684.36x = 541,955.00 × 239,690.34 - Step 4: Simplify right side
392,684.36x = 129,901,378,813.93 - Step 5: Solve for x
x = 129,901,378,813.93/392,684.36 - Step 6: Final answer
x = 330,803.55
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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.