Finding the Fourth Proportional to 268,257.36, 402,385.76 and 68,577.92
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Solution
The fourth proportional to 268,257.36, 402,385.76 and 68,577.92 is: 102,866.81
Step by Step Solution
- Step 1: Write the proportion equation
268,257.36 : 402,385.76 = 68,577.92 : x - Step 2: Convert to fraction form
268,257.36/402,385.76 = 68,577.92/x - Step 3: Cross multiply
268,257.36x = 402,385.76 × 68,577.92 - Step 4: Simplify right side
268,257.36x = 27,594,778,458.42 - Step 5: Solve for x
x = 27,594,778,458.42/268,257.36 - Step 6: Final answer
x = 102,866.81
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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.