Finding the Fourth Proportional to 230,072.91, 317,451.81 and 145,140.75
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Solution
The fourth proportional to 230,072.91, 317,451.81 and 145,140.75 is: 200,263.45
Step by Step Solution
- Step 1: Write the proportion equation
230,072.91 : 317,451.81 = 145,140.75 : x - Step 2: Convert to fraction form
230,072.91/317,451.81 = 145,140.75/x - Step 3: Cross multiply
230,072.91x = 317,451.81 × 145,140.75 - Step 4: Simplify right side
230,072.91x = 46,075,193,792.26 - Step 5: Solve for x
x = 46,075,193,792.26/230,072.91 - Step 6: Final answer
x = 200,263.45
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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.