Finding the Fourth Proportional to 643,586.21, 965,535.39 and 194,280.26
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Solution
The fourth proportional to 643,586.21, 965,535.39 and 194,280.26 is: 291,467.50
Step by Step Solution
- Step 1: Write the proportion equation
643,586.21 : 965,535.39 = 194,280.26 : x - Step 2: Convert to fraction form
643,586.21/965,535.39 = 194,280.26/x - Step 3: Cross multiply
643,586.21x = 965,535.39 × 194,280.26 - Step 4: Simplify right side
643,586.21x = 187,584,461,780.72 - Step 5: Solve for x
x = 187,584,461,780.72/643,586.21 - Step 6: Final answer
x = 291,467.50
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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.