Finding the Fourth Proportional to 210,251.64, 315,475.88 and 91,907.68
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Solution
The fourth proportional to 210,251.64, 315,475.88 and 91,907.68 is: 137,904.54
Step by Step Solution
- Step 1: Write the proportion equation
210,251.64 : 315,475.88 = 91,907.68 : x - Step 2: Convert to fraction form
210,251.64/315,475.88 = 91,907.68/x - Step 3: Cross multiply
210,251.64x = 315,475.88 × 91,907.68 - Step 4: Simplify right side
210,251.64x = 28,994,656,226.76 - Step 5: Solve for x
x = 28,994,656,226.76/210,251.64 - Step 6: Final answer
x = 137,904.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.