Finding the Fourth Proportional to 207,801.70, 310,924.95 and 137,817.70
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Solution
The fourth proportional to 207,801.70, 310,924.95 and 137,817.70 is: 206,210.83
Step by Step Solution
- Step 1: Write the proportion equation
207,801.70 : 310,924.95 = 137,817.70 : x - Step 2: Convert to fraction form
207,801.70/310,924.95 = 137,817.70/x - Step 3: Cross multiply
207,801.70x = 310,924.95 × 137,817.70 - Step 4: Simplify right side
207,801.70x = 42,850,961,481.62 - Step 5: Solve for x
x = 42,850,961,481.62/207,801.70 - Step 6: Final answer
x = 206,210.83
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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.