Finding the Fourth Proportional to 320,490.05, 480,396.06 and 120,724.02
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Solution
The fourth proportional to 320,490.05, 480,396.06 and 120,724.02 is: 180,958.33
Step by Step Solution
- Step 1: Write the proportion equation
320,490.05 : 480,396.06 = 120,724.02 : x - Step 2: Convert to fraction form
320,490.05/480,396.06 = 120,724.02/x - Step 3: Cross multiply
320,490.05x = 480,396.06 × 120,724.02 - Step 4: Simplify right side
320,490.05x = 57,995,343,555.36 - Step 5: Solve for x
x = 57,995,343,555.36/320,490.05 - Step 6: Final answer
x = 180,958.33
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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.