Finding the Fourth Proportional to 331,303.36, 457,186.14 and 202,457.28
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Solution
The fourth proportional to 331,303.36, 457,186.14 and 202,457.28 is: 279,383.41
Step by Step Solution
- Step 1: Write the proportion equation
331,303.36 : 457,186.14 = 202,457.28 : x - Step 2: Convert to fraction form
331,303.36/457,186.14 = 202,457.28/x - Step 3: Cross multiply
331,303.36x = 457,186.14 × 202,457.28 - Step 4: Simplify right side
331,303.36x = 92,560,662,358.10 - Step 5: Solve for x
x = 92,560,662,358.10/331,303.36 - Step 6: Final answer
x = 279,383.41
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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.