Finding the Fourth Proportional to 292,912.80, 439,369.20 and 160,202.40
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Solution
The fourth proportional to 292,912.80, 439,369.20 and 160,202.40 is: 240,303.60
Step by Step Solution
- Step 1: Write the proportion equation
292,912.80 : 439,369.20 = 160,202.40 : x - Step 2: Convert to fraction form
292,912.80/439,369.20 = 160,202.40/x - Step 3: Cross multiply
292,912.80x = 439,369.20 × 160,202.40 - Step 4: Simplify right side
292,912.80x = 70,388,000,326.08 - Step 5: Solve for x
x = 70,388,000,326.08/292,912.80 - Step 6: Final answer
x = 240,303.60
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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.