Finding the Fourth Proportional to 351,426.80, 527,135.50 and 85,189.62
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Solution
The fourth proportional to 351,426.80, 527,135.50 and 85,189.62 is: 127,783.29
Step by Step Solution
- Step 1: Write the proportion equation
351,426.80 : 527,135.50 = 85,189.62 : x - Step 2: Convert to fraction form
351,426.80/527,135.50 = 85,189.62/x - Step 3: Cross multiply
351,426.80x = 527,135.50 × 85,189.62 - Step 4: Simplify right side
351,426.80x = 44,906,474,537.56 - Step 5: Solve for x
x = 44,906,474,537.56/351,426.80 - Step 6: Final answer
x = 127,783.29
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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.