Finding the Fourth Proportional to 210,511.08, 290,509.48 and 115,023.68
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Solution
The fourth proportional to 210,511.08, 290,509.48 and 115,023.68 is: 158,734.97
Step by Step Solution
- Step 1: Write the proportion equation
210,511.08 : 290,509.48 = 115,023.68 : x - Step 2: Convert to fraction form
210,511.08/290,509.48 = 115,023.68/x - Step 3: Cross multiply
210,511.08x = 290,509.48 × 115,023.68 - Step 4: Simplify right side
210,511.08x = 33,415,469,464.49 - Step 5: Solve for x
x = 33,415,469,464.49/210,511.08 - Step 6: Final answer
x = 158,734.97
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1.5x scale
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.