Finding the Fourth Proportional to 239,278.24, 358,807.20 and 81,464.32
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Solution
The fourth proportional to 239,278.24, 358,807.20 and 81,464.32 is: 122,158.98
Step by Step Solution
- Step 1: Write the proportion equation
239,278.24 : 358,807.20 = 81,464.32 : x - Step 2: Convert to fraction form
239,278.24/358,807.20 = 81,464.32/x - Step 3: Cross multiply
239,278.24x = 358,807.20 × 81,464.32 - Step 4: Simplify right side
239,278.24x = 29,229,984,559.10 - Step 5: Solve for x
x = 29,229,984,559.10/239,278.24 - Step 6: Final answer
x = 122,158.98
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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.