Finding the Fourth Proportional to 225,949.08, 311,808.72 and 125,347.08
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Solution
The fourth proportional to 225,949.08, 311,808.72 and 125,347.08 is: 172,978.41
Step by Step Solution
- Step 1: Write the proportion equation
225,949.08 : 311,808.72 = 125,347.08 : x - Step 2: Convert to fraction form
225,949.08/311,808.72 = 125,347.08/x - Step 3: Cross multiply
225,949.08x = 311,808.72 × 125,347.08 - Step 4: Simplify right side
225,949.08x = 39,084,312,570.54 - Step 5: Solve for x
x = 39,084,312,570.54/225,949.08 - Step 6: Final answer
x = 172,978.41
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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.