Finding the Fourth Proportional to 210,742.23, 290,826.57 and 115,246.88
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Solution
The fourth proportional to 210,742.23, 290,826.57 and 115,246.88 is: 159,041.94
Step by Step Solution
- Step 1: Write the proportion equation
210,742.23 : 290,826.57 = 115,246.88 : x - Step 2: Convert to fraction form
210,742.23/290,826.57 = 115,246.88/x - Step 3: Cross multiply
210,742.23x = 290,826.57 × 115,246.88 - Step 4: Simplify right side
210,742.23x = 33,516,853,791.64 - Step 5: Solve for x
x = 33,516,853,791.64/210,742.23 - Step 6: Final answer
x = 159,041.94
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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.