Finding the Fourth Proportional to 358,403.08, 494,430.78 and 214,914.28
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Solution
The fourth proportional to 358,403.08, 494,430.78 and 214,914.28 is: 296,482.48
Step by Step Solution
- Step 1: Write the proportion equation
358,403.08 : 494,430.78 = 214,914.28 : x - Step 2: Convert to fraction form
358,403.08/494,430.78 = 214,914.28/x - Step 3: Cross multiply
358,403.08x = 494,430.78 × 214,914.28 - Step 4: Simplify right side
358,403.08x = 106,260,235,093.54 - Step 5: Solve for x
x = 106,260,235,093.54/358,403.08 - Step 6: Final answer
x = 296,482.48
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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.