Finding the Fourth Proportional to 201,187.70, 301,781.55 and 131,203.70
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Solution
The fourth proportional to 201,187.70, 301,781.55 and 131,203.70 is: 196,805.55
Step by Step Solution
- Step 1: Write the proportion equation
201,187.70 : 301,781.55 = 131,203.70 : x - Step 2: Convert to fraction form
201,187.70/301,781.55 = 131,203.70/x - Step 3: Cross multiply
201,187.70x = 301,781.55 × 131,203.70 - Step 4: Simplify right side
201,187.70x = 39,594,855,951.74 - Step 5: Solve for x
x = 39,594,855,951.74/201,187.70 - Step 6: Final answer
x = 196,805.55
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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.