Finding the Fourth Proportional to 312,316.64, 430,997.12 and 169,076.68
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Solution
The fourth proportional to 312,316.64, 430,997.12 and 169,076.68 is: 233,325.90
Step by Step Solution
- Step 1: Write the proportion equation
312,316.64 : 430,997.12 = 169,076.68 : x - Step 2: Convert to fraction form
312,316.64/430,997.12 = 169,076.68/x - Step 3: Cross multiply
312,316.64x = 430,997.12 × 169,076.68 - Step 4: Simplify right side
312,316.64x = 72,871,562,139.16 - Step 5: Solve for x
x = 72,871,562,139.16/312,316.64 - Step 6: Final answer
x = 233,325.90
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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.