Finding the Fourth Proportional to 296,257.36, 408,409.88 and 211,226.80
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Solution
The fourth proportional to 296,257.36, 408,409.88 and 211,226.80 is: 291,189.77
Step by Step Solution
- Step 1: Write the proportion equation
296,257.36 : 408,409.88 = 211,226.80 : x - Step 2: Convert to fraction form
296,257.36/408,409.88 = 211,226.80/x - Step 3: Cross multiply
296,257.36x = 408,409.88 × 211,226.80 - Step 4: Simplify right side
296,257.36x = 86,267,112,040.78 - Step 5: Solve for x
x = 86,267,112,040.78/296,257.36 - Step 6: Final answer
x = 291,189.77
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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.