Finding the Fourth Proportional to 457,380.56, 686,070.84 and 208,133.84
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Solution
The fourth proportional to 457,380.56, 686,070.84 and 208,133.84 is: 312,200.76
Step by Step Solution
- Step 1: Write the proportion equation
457,380.56 : 686,070.84 = 208,133.84 : x - Step 2: Convert to fraction form
457,380.56/686,070.84 = 208,133.84/x - Step 3: Cross multiply
457,380.56x = 686,070.84 × 208,133.84 - Step 4: Simplify right side
457,380.56x = 142,794,558,441.23 - Step 5: Solve for x
x = 142,794,558,441.23/457,380.56 - Step 6: Final answer
x = 312,200.76
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Similar ratio
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1.5x scale
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.