Finding the Fourth Proportional to 459,513.09, 634,122.42 and 258,309.09
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Solution
The fourth proportional to 459,513.09, 634,122.42 and 258,309.09 is: 356,463.37
Step by Step Solution
- Step 1: Write the proportion equation
459,513.09 : 634,122.42 = 258,309.09 : x - Step 2: Convert to fraction form
459,513.09/634,122.42 = 258,309.09/x - Step 3: Cross multiply
459,513.09x = 634,122.42 × 258,309.09 - Step 4: Simplify right side
459,513.09x = 163,799,585,258.80 - Step 5: Solve for x
x = 163,799,585,258.80/459,513.09 - Step 6: Final answer
x = 356,463.37
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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.