Finding the Fourth Proportional to 208,813.14, 313,219.35 and 75,693.06
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Solution
The fourth proportional to 208,813.14, 313,219.35 and 75,693.06 is: 113,539.46
Step by Step Solution
- Step 1: Write the proportion equation
208,813.14 : 313,219.35 = 75,693.06 : x - Step 2: Convert to fraction form
208,813.14/313,219.35 = 75,693.06/x - Step 3: Cross multiply
208,813.14x = 313,219.35 × 75,693.06 - Step 4: Simplify right side
208,813.14x = 23,708,531,052.71 - Step 5: Solve for x
x = 23,708,531,052.71/208,813.14 - Step 6: Final answer
x = 113,539.46
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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.