Finding the Fourth Proportional to 208,801.80, 313,202.70 and 155,657.70
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Solution
The fourth proportional to 208,801.80, 313,202.70 and 155,657.70 is: 233,486.55
Step by Step Solution
- Step 1: Write the proportion equation
208,801.80 : 313,202.70 = 155,657.70 : x - Step 2: Convert to fraction form
208,801.80/313,202.70 = 155,657.70/x - Step 3: Cross multiply
208,801.80x = 313,202.70 × 155,657.70 - Step 4: Simplify right side
208,801.80x = 48,752,411,915.79 - Step 5: Solve for x
x = 48,752,411,915.79/208,801.80 - Step 6: Final answer
x = 233,486.55
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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.