Finding the Fourth Proportional to 201,893.40, 302,840.10 and 68,923.80
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Solution
The fourth proportional to 201,893.40, 302,840.10 and 68,923.80 is: 103,385.70
Step by Step Solution
- Step 1: Write the proportion equation
201,893.40 : 302,840.10 = 68,923.80 : x - Step 2: Convert to fraction form
201,893.40/302,840.10 = 68,923.80/x - Step 3: Cross multiply
201,893.40x = 302,840.10 × 68,923.80 - Step 4: Simplify right side
201,893.40x = 20,872,890,484.38 - Step 5: Solve for x
x = 20,872,890,484.38/201,893.40 - Step 6: Final answer
x = 103,385.70
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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.