Finding the Fourth Proportional to 225,337.68, 310,961.43 and 129,838.68
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Solution
The fourth proportional to 225,337.68, 310,961.43 and 129,838.68 is: 179,174.75
Step by Step Solution
- Step 1: Write the proportion equation
225,337.68 : 310,961.43 = 129,838.68 : x - Step 2: Convert to fraction form
225,337.68/310,961.43 = 129,838.68/x - Step 3: Cross multiply
225,337.68x = 310,961.43 × 129,838.68 - Step 4: Simplify right side
225,337.68x = 40,374,821,602.11 - Step 5: Solve for x
x = 40,374,821,602.11/225,337.68 - Step 6: Final answer
x = 179,174.75
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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.