Finding the Fourth Proportional to 408,908.80, 613,593.60 and 159,558.40
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Solution
The fourth proportional to 408,908.80, 613,593.60 and 159,558.40 is: 239,427.50
Step by Step Solution
- Step 1: Write the proportion equation
408,908.80 : 613,593.60 = 159,558.40 : x - Step 2: Convert to fraction form
408,908.80/613,593.60 = 159,558.40/x - Step 3: Cross multiply
408,908.80x = 613,593.60 × 159,558.40 - Step 4: Simplify right side
408,908.80x = 97,904,013,066.24 - Step 5: Solve for x
x = 97,904,013,066.24/408,908.80 - Step 6: Final answer
x = 239,427.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.