Finding the Fourth Proportional to 208,415.10, 312,622.65 and 97,823.10
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Solution
The fourth proportional to 208,415.10, 312,622.65 and 97,823.10 is: 146,734.65
Step by Step Solution
- Step 1: Write the proportion equation
208,415.10 : 312,622.65 = 97,823.10 : x - Step 2: Convert to fraction form
208,415.10/312,622.65 = 97,823.10/x - Step 3: Cross multiply
208,415.10x = 312,622.65 × 97,823.10 - Step 4: Simplify right side
208,415.10x = 30,581,716,753.22 - Step 5: Solve for x
x = 30,581,716,753.22/208,415.10 - Step 6: Final answer
x = 146,734.65
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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.