Finding the Fourth Proportional to 317,769.36, 438,338.64 and 190,371.14
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Solution
The fourth proportional to 317,769.36, 438,338.64 and 190,371.14 is: 262,602.49
Step by Step Solution
- Step 1: Write the proportion equation
317,769.36 : 438,338.64 = 190,371.14 : x - Step 2: Convert to fraction form
317,769.36/438,338.64 = 190,371.14/x - Step 3: Cross multiply
317,769.36x = 438,338.64 × 190,371.14 - Step 4: Simplify right side
317,769.36x = 83,447,024,411.16 - Step 5: Solve for x
x = 83,447,024,411.16/317,769.36 - Step 6: Final answer
x = 262,602.49
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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.