Finding the Fourth Proportional to 207,620.20, 310,774.20 and 163,005.40
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Solution
The fourth proportional to 207,620.20, 310,774.20 and 163,005.40 is: 243,992.99
Step by Step Solution
- Step 1: Write the proportion equation
207,620.20 : 310,774.20 = 163,005.40 : x - Step 2: Convert to fraction form
207,620.20/310,774.20 = 163,005.40/x - Step 3: Cross multiply
207,620.20x = 310,774.20 × 163,005.40 - Step 4: Simplify right side
207,620.20x = 50,657,872,780.68 - Step 5: Solve for x
x = 50,657,872,780.68/207,620.20 - Step 6: Final answer
x = 243,992.99
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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.