Finding the Fourth Proportional to 388,679.88, 583,330.85 and 201,744.84
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Solution
The fourth proportional to 388,679.88, 583,330.85 and 201,744.84 is: 302,778.70
Step by Step Solution
- Step 1: Write the proportion equation
388,679.88 : 583,330.85 = 201,744.84 : x - Step 2: Convert to fraction form
388,679.88/583,330.85 = 201,744.84/x - Step 3: Cross multiply
388,679.88x = 583,330.85 × 201,744.84 - Step 4: Simplify right side
388,679.88x = 117,683,987,991.59 - Step 5: Solve for x
x = 117,683,987,991.59/388,679.88 - Step 6: Final answer
x = 302,778.70
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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.