Finding the Fourth Proportional to 317,503.44, 438,140.36 and 190,249.68
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Solution
The fourth proportional to 317,503.44, 438,140.36 and 190,249.68 is: 262,535.94
Step by Step Solution
- Step 1: Write the proportion equation
317,503.44 : 438,140.36 = 190,249.68 : x - Step 2: Convert to fraction form
317,503.44/438,140.36 = 190,249.68/x - Step 3: Cross multiply
317,503.44x = 438,140.36 × 190,249.68 - Step 4: Simplify right side
317,503.44x = 83,356,063,285.08 - Step 5: Solve for x
x = 83,356,063,285.08/317,503.44 - Step 6: Final answer
x = 262,535.94
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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.