Finding the Fourth Proportional to 339,728.16, 468,830.84 and 186,772.80
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Solution
The fourth proportional to 339,728.16, 468,830.84 and 186,772.80 is: 257,749.75
Step by Step Solution
- Step 1: Write the proportion equation
339,728.16 : 468,830.84 = 186,772.80 : x - Step 2: Convert to fraction form
339,728.16/468,830.84 = 186,772.80/x - Step 3: Cross multiply
339,728.16x = 468,830.84 × 186,772.80 - Step 4: Simplify right side
339,728.16x = 87,564,848,713.15 - Step 5: Solve for x
x = 87,564,848,713.15/339,728.16 - Step 6: Final answer
x = 257,749.75
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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.