Finding the Fourth Proportional to 388,385.94, 581,832.63 and 238,188.42
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Solution
The fourth proportional to 388,385.94, 581,832.63 and 238,188.42 is: 356,824.95
Step by Step Solution
- Step 1: Write the proportion equation
388,385.94 : 581,832.63 = 238,188.42 : x - Step 2: Convert to fraction form
388,385.94/581,832.63 = 238,188.42/x - Step 3: Cross multiply
388,385.94x = 581,832.63 × 238,188.42 - Step 4: Simplify right side
388,385.94x = 138,585,794,844.15 - Step 5: Solve for x
x = 138,585,794,844.15/388,385.94 - Step 6: Final answer
x = 356,824.95
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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.