Finding the Fourth Proportional to 457,241.70, 685,862.55 and 207,923.70
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Solution
The fourth proportional to 457,241.70, 685,862.55 and 207,923.70 is: 311,885.55
Step by Step Solution
- Step 1: Write the proportion equation
457,241.70 : 685,862.55 = 207,923.70 : x - Step 2: Convert to fraction form
457,241.70/685,862.55 = 207,923.70/x - Step 3: Cross multiply
457,241.70x = 685,862.55 × 207,923.70 - Step 4: Simplify right side
457,241.70x = 142,607,079,087.44 - Step 5: Solve for x
x = 142,607,079,087.44/457,241.70 - Step 6: Final answer
x = 311,885.55
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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.