Finding the Fourth Proportional to 239,230.95, 330,079.10 and 154,245.75
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Solution
The fourth proportional to 239,230.95, 330,079.10 and 154,245.75 is: 212,820.70
Step by Step Solution
- Step 1: Write the proportion equation
239,230.95 : 330,079.10 = 154,245.75 : x - Step 2: Convert to fraction form
239,230.95/330,079.10 = 154,245.75/x - Step 3: Cross multiply
239,230.95x = 330,079.10 × 154,245.75 - Step 4: Simplify right side
239,230.95x = 50,913,297,567.60 - Step 5: Solve for x
x = 50,913,297,567.60/239,230.95 - Step 6: Final answer
x = 212,820.70
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1.5x scale
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.