Finding the Fourth Proportional to 266,597.12, 367,903.12 and 145,738.40
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Solution
The fourth proportional to 266,597.12, 367,903.12 and 145,738.40 is: 201,118.50
Step by Step Solution
- Step 1: Write the proportion equation
266,597.12 : 367,903.12 = 145,738.40 : x - Step 2: Convert to fraction form
266,597.12/367,903.12 = 145,738.40/x - Step 3: Cross multiply
266,597.12x = 367,903.12 × 145,738.40 - Step 4: Simplify right side
266,597.12x = 53,617,612,063.81 - Step 5: Solve for x
x = 53,617,612,063.81/266,597.12 - Step 6: Final answer
x = 201,118.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.