Finding the Fourth Proportional to 226,727.64, 312,911.10 and 129,966.12
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Solution
The fourth proportional to 226,727.64, 312,911.10 and 129,966.12 is: 179,368.70
Step by Step Solution
- Step 1: Write the proportion equation
226,727.64 : 312,911.10 = 129,966.12 : x - Step 2: Convert to fraction form
226,727.64/312,911.10 = 129,966.12/x - Step 3: Cross multiply
226,727.64x = 312,911.10 × 129,966.12 - Step 4: Simplify right side
226,727.64x = 40,667,841,571.93 - Step 5: Solve for x
x = 40,667,841,571.93/226,727.64 - Step 6: Final answer
x = 179,368.70
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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.