Finding the Fourth Proportional to 354,128.79, 488,691.18 and 192,984.96
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Solution
The fourth proportional to 354,128.79, 488,691.18 and 192,984.96 is: 266,315.68
Step by Step Solution
- Step 1: Write the proportion equation
354,128.79 : 488,691.18 = 192,984.96 : x - Step 2: Convert to fraction form
354,128.79/488,691.18 = 192,984.96/x - Step 3: Cross multiply
354,128.79x = 488,691.18 × 192,984.96 - Step 4: Simplify right side
354,128.79x = 94,310,047,824.65 - Step 5: Solve for x
x = 94,310,047,824.65/354,128.79 - Step 6: Final answer
x = 266,315.68
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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.