Finding the Fourth Proportional to 354,918.36, 489,798.93 and 193,785.67
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Solution
The fourth proportional to 354,918.36, 489,798.93 and 193,785.67 is: 267,430.55
Step by Step Solution
- Step 1: Write the proportion equation
354,918.36 : 489,798.93 = 193,785.67 : x - Step 2: Convert to fraction form
354,918.36/489,798.93 = 193,785.67/x - Step 3: Cross multiply
354,918.36x = 489,798.93 × 193,785.67 - Step 4: Simplify right side
354,918.36x = 94,916,010,764.09 - Step 5: Solve for x
x = 94,916,010,764.09/354,918.36 - Step 6: Final answer
x = 267,430.55
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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.