Finding the Fourth Proportional to 228,812.47, 315,573.99 and 161,053.75
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Solution
The fourth proportional to 228,812.47, 315,573.99 and 161,053.75 is: 222,122.40
Step by Step Solution
- Step 1: Write the proportion equation
228,812.47 : 315,573.99 = 161,053.75 : x - Step 2: Convert to fraction form
228,812.47/315,573.99 = 161,053.75/x - Step 3: Cross multiply
228,812.47x = 315,573.99 × 161,053.75 - Step 4: Simplify right side
228,812.47x = 50,824,374,491.96 - Step 5: Solve for x
x = 50,824,374,491.96/228,812.47 - Step 6: Final answer
x = 222,122.40
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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.