Finding the Fourth Proportional to 201,647.80, 302,471.70 and 139,439.80
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Solution
The fourth proportional to 201,647.80, 302,471.70 and 139,439.80 is: 209,159.70
Step by Step Solution
- Step 1: Write the proportion equation
201,647.80 : 302,471.70 = 139,439.80 : x - Step 2: Convert to fraction form
201,647.80/302,471.70 = 139,439.80/x - Step 3: Cross multiply
201,647.80x = 302,471.70 × 139,439.80 - Step 4: Simplify right side
201,647.80x = 42,176,593,353.66 - Step 5: Solve for x
x = 42,176,593,353.66/201,647.80 - Step 6: Final answer
x = 209,159.70
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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.