Finding the Fourth Proportional to 383,164.63, 528,783.53 and 213,398.75
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Solution
The fourth proportional to 383,164.63, 528,783.53 and 213,398.75 is: 294,499.38
Step by Step Solution
- Step 1: Write the proportion equation
383,164.63 : 528,783.53 = 213,398.75 : x - Step 2: Convert to fraction form
383,164.63/528,783.53 = 213,398.75/x - Step 3: Cross multiply
383,164.63x = 528,783.53 × 213,398.75 - Step 4: Simplify right side
383,164.63x = 112,841,744,577.55 - Step 5: Solve for x
x = 112,841,744,577.55/383,164.63 - Step 6: Final answer
x = 294,499.38
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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.