Finding the Fourth Proportional to 354,981.21, 531,224.99 and 305,657.07
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Solution
The fourth proportional to 354,981.21, 531,224.99 and 305,657.07 is: 457,412.02
Step by Step Solution
- Step 1: Write the proportion equation
354,981.21 : 531,224.99 = 305,657.07 : x - Step 2: Convert to fraction form
354,981.21/531,224.99 = 305,657.07/x - Step 3: Cross multiply
354,981.21x = 531,224.99 × 305,657.07 - Step 4: Simplify right side
354,981.21x = 162,372,673,954.18 - Step 5: Solve for x
x = 162,372,673,954.18/354,981.21 - Step 6: Final answer
x = 457,412.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.