Finding the Fourth Proportional to 306,140.36, 458,991.08 and 143,943.63
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Solution
The fourth proportional to 306,140.36, 458,991.08 and 143,943.63 is: 215,812.26
Step by Step Solution
- Step 1: Write the proportion equation
306,140.36 : 458,991.08 = 143,943.63 : x - Step 2: Convert to fraction form
306,140.36/458,991.08 = 143,943.63/x - Step 3: Cross multiply
306,140.36x = 458,991.08 × 143,943.63 - Step 4: Simplify right side
306,140.36x = 66,068,843,278.34 - Step 5: Solve for x
x = 66,068,843,278.34/306,140.36 - Step 6: Final answer
x = 215,812.26
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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.