Finding the Fourth Proportional to 349,201.09, 523,801.64 and 99,883.09
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Solution
The fourth proportional to 349,201.09, 523,801.64 and 99,883.09 is: 149,824.64
Step by Step Solution
- Step 1: Write the proportion equation
349,201.09 : 523,801.64 = 99,883.09 : x - Step 2: Convert to fraction form
349,201.09/523,801.64 = 99,883.09/x - Step 3: Cross multiply
349,201.09x = 523,801.64 × 99,883.09 - Step 4: Simplify right side
349,201.09x = 52,318,926,350.27 - Step 5: Solve for x
x = 52,318,926,350.27/349,201.09 - Step 6: Final answer
x = 149,824.64
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1.5x scale
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.