Finding the Fourth Proportional to 354,482.28, 489,286.71 and 201,602.88
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Solution
The fourth proportional to 354,482.28, 489,286.71 and 201,602.88 is: 278,269.51
Step by Step Solution
- Step 1: Write the proportion equation
354,482.28 : 489,286.71 = 201,602.88 : x - Step 2: Convert to fraction form
354,482.28/489,286.71 = 201,602.88/x - Step 3: Cross multiply
354,482.28x = 489,286.71 × 201,602.88 - Step 4: Simplify right side
354,482.28x = 98,641,609,881.72 - Step 5: Solve for x
x = 98,641,609,881.72/354,482.28 - Step 6: Final answer
x = 278,269.51
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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.