Finding the Fourth Proportional to 138,415.10, 207,622.65 and 44,930.30
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Solution
The fourth proportional to 138,415.10, 207,622.65 and 44,930.30 is: 67,395.45
Step by Step Solution
- Step 1: Write the proportion equation
138,415.10 : 207,622.65 = 44,930.30 : x - Step 2: Convert to fraction form
138,415.10/207,622.65 = 44,930.30/x - Step 3: Cross multiply
138,415.10x = 207,622.65 × 44,930.30 - Step 4: Simplify right side
138,415.10x = 9,328,547,951.30 - Step 5: Solve for x
x = 9,328,547,951.30/138,415.10 - Step 6: Final answer
x = 67,395.45
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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.