Finding the Fourth Proportional to 314,812.09, 434,427.99 and 171,569.05
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Solution
The fourth proportional to 314,812.09, 434,427.99 and 171,569.05 is: 236,758.37
Step by Step Solution
- Step 1: Write the proportion equation
314,812.09 : 434,427.99 = 171,569.05 : x - Step 2: Convert to fraction form
314,812.09/434,427.99 = 171,569.05/x - Step 3: Cross multiply
314,812.09x = 434,427.99 × 171,569.05 - Step 4: Simplify right side
314,812.09x = 74,534,397,537.71 - Step 5: Solve for x
x = 74,534,397,537.71/314,812.09 - Step 6: Final answer
x = 236,758.37
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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.