Finding the Fourth Proportional to 398,153.41, 549,571.75 and 270,902.81
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Solution
The fourth proportional to 398,153.41, 549,571.75 and 270,902.81 is: 373,927.56
Step by Step Solution
- Step 1: Write the proportion equation
398,153.41 : 549,571.75 = 270,902.81 : x - Step 2: Convert to fraction form
398,153.41/549,571.75 = 270,902.81/x - Step 3: Cross multiply
398,153.41x = 549,571.75 × 270,902.81 - Step 4: Simplify right side
398,153.41x = 148,880,532,068.29 - Step 5: Solve for x
x = 148,880,532,068.29/398,153.41 - Step 6: Final answer
x = 373,927.56
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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.