Finding the Fourth Proportional to 208,420.08, 312,566.28 and 75,283.92
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Solution
The fourth proportional to 208,420.08, 312,566.28 and 75,283.92 is: 112,902.82
Step by Step Solution
- Step 1: Write the proportion equation
208,420.08 : 312,566.28 = 75,283.92 : x - Step 2: Convert to fraction form
208,420.08/312,566.28 = 75,283.92/x - Step 3: Cross multiply
208,420.08x = 312,566.28 × 75,283.92 - Step 4: Simplify right side
208,420.08x = 23,531,214,818.22 - Step 5: Solve for x
x = 23,531,214,818.22/208,420.08 - Step 6: Final answer
x = 112,902.82
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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.