Finding the Fourth Proportional to 259,725.96, 358,427.42 and 143,439.08
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Solution
The fourth proportional to 259,725.96, 358,427.42 and 143,439.08 is: 197,949.02
Step by Step Solution
- Step 1: Write the proportion equation
259,725.96 : 358,427.42 = 143,439.08 : x - Step 2: Convert to fraction form
259,725.96/358,427.42 = 143,439.08/x - Step 3: Cross multiply
259,725.96x = 358,427.42 × 143,439.08 - Step 4: Simplify right side
259,725.96x = 51,412,499,371.57 - Step 5: Solve for x
x = 51,412,499,371.57/259,725.96 - Step 6: Final answer
x = 197,949.02
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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.