Finding the Fourth Proportional to 354,455.42, 489,146.73 and 193,307.54
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Solution
The fourth proportional to 354,455.42, 489,146.73 and 193,307.54 is: 266,763.45
Step by Step Solution
- Step 1: Write the proportion equation
354,455.42 : 489,146.73 = 193,307.54 : x - Step 2: Convert to fraction form
354,455.42/489,146.73 = 193,307.54/x - Step 3: Cross multiply
354,455.42x = 489,146.73 × 193,307.54 - Step 4: Simplify right side
354,455.42x = 94,555,751,075.34 - Step 5: Solve for x
x = 94,555,751,075.34/354,455.42 - Step 6: Final answer
x = 266,763.45
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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.