Finding the Fourth Proportional to 383,513.93, 529,252.90 and 211,438.19
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Solution
The fourth proportional to 383,513.93, 529,252.90 and 211,438.19 is: 291,786.73
Step by Step Solution
- Step 1: Write the proportion equation
383,513.93 : 529,252.90 = 211,438.19 : x - Step 2: Convert to fraction form
383,513.93/529,252.90 = 211,438.19/x - Step 3: Cross multiply
383,513.93x = 529,252.90 × 211,438.19 - Step 4: Simplify right side
383,513.93x = 111,904,275,228.25 - Step 5: Solve for x
x = 111,904,275,228.25/383,513.93 - Step 6: Final answer
x = 291,786.73
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1.5x scale
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.