Finding the Fourth Proportional to 388,278.24, 582,457.12 and 148,593.75
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Solution
The fourth proportional to 388,278.24, 582,457.12 and 148,593.75 is: 222,905.84
Step by Step Solution
- Step 1: Write the proportion equation
388,278.24 : 582,457.12 = 148,593.75 : x - Step 2: Convert to fraction form
388,278.24/582,457.12 = 148,593.75/x - Step 3: Cross multiply
388,278.24x = 582,457.12 × 148,593.75 - Step 4: Simplify right side
388,278.24x = 86,549,487,675 - Step 5: Solve for x
x = 86,549,487,675/388,278.24 - Step 6: Final answer
x = 222,905.84
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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.