Finding the Fourth Proportional to 317,762.28, 438,328.92 and 190,364.08
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Solution
The fourth proportional to 317,762.28, 438,328.92 and 190,364.08 is: 262,592.78
Step by Step Solution
- Step 1: Write the proportion equation
317,762.28 : 438,328.92 = 190,364.08 : x - Step 2: Convert to fraction form
317,762.28/438,328.92 = 190,364.08/x - Step 3: Cross multiply
317,762.28x = 438,328.92 × 190,364.08 - Step 4: Simplify right side
317,762.28x = 83,442,081,593.19 - Step 5: Solve for x
x = 83,442,081,593.19/317,762.28 - Step 6: Final answer
x = 262,592.78
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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.