Finding the Fourth Proportional to 457,543.75, 686,315.64 and 125,119.75
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Solution
The fourth proportional to 457,543.75, 686,315.64 and 125,119.75 is: 187,679.63
Step by Step Solution
- Step 1: Write the proportion equation
457,543.75 : 686,315.64 = 125,119.75 : x - Step 2: Convert to fraction form
457,543.75/686,315.64 = 125,119.75/x - Step 3: Cross multiply
457,543.75x = 686,315.64 × 125,119.75 - Step 4: Simplify right side
457,543.75x = 85,871,641,297.89 - Step 5: Solve for x
x = 85,871,641,297.89/457,543.75 - Step 6: Final answer
x = 187,679.63
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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.