Finding the Fourth Proportional to 318,671.36, 478,302.42 and 161,010.62
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Solution
The fourth proportional to 318,671.36, 478,302.42 and 161,010.62 is: 241,665.17
Step by Step Solution
- Step 1: Write the proportion equation
318,671.36 : 478,302.42 = 161,010.62 : x - Step 2: Convert to fraction form
318,671.36/478,302.42 = 161,010.62/x - Step 3: Cross multiply
318,671.36x = 478,302.42 × 161,010.62 - Step 4: Simplify right side
318,671.36x = 77,011,769,191.70 - Step 5: Solve for x
x = 77,011,769,191.70/318,671.36 - Step 6: Final answer
x = 241,665.17
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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.