Finding the Fourth Proportional to 268,243.80, 402,365.70 and 120,787.80
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Solution
The fourth proportional to 268,243.80, 402,365.70 and 120,787.80 is: 181,181.70
Step by Step Solution
- Step 1: Write the proportion equation
268,243.80 : 402,365.70 = 120,787.80 : x - Step 2: Convert to fraction form
268,243.80/402,365.70 = 120,787.80/x - Step 3: Cross multiply
268,243.80x = 402,365.70 × 120,787.80 - Step 4: Simplify right side
268,243.80x = 48,600,867,698.46 - Step 5: Solve for x
x = 48,600,867,698.46/268,243.80 - Step 6: Final answer
x = 181,181.70
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1.5x scale
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.