Finding the Fourth Proportional to 383,468.58, 529,190.21 and 211,393.14
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Solution
The fourth proportional to 383,468.58, 529,190.21 and 211,393.14 is: 291,724.50
Step by Step Solution
- Step 1: Write the proportion equation
383,468.58 : 529,190.21 = 211,393.14 : x - Step 2: Convert to fraction form
383,468.58/529,190.21 = 211,393.14/x - Step 3: Cross multiply
383,468.58x = 529,190.21 × 211,393.14 - Step 4: Simplify right side
383,468.58x = 111,867,181,669.87 - Step 5: Solve for x
x = 111,867,181,669.87/383,468.58 - Step 6: Final answer
x = 291,724.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.