Finding the Fourth Proportional to 490,490.29, 735,728.14 and 135,496.45
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Solution
The fourth proportional to 490,490.29, 735,728.14 and 135,496.45 is: 203,242.66
Step by Step Solution
- Step 1: Write the proportion equation
490,490.29 : 735,728.14 = 135,496.45 : x - Step 2: Convert to fraction form
490,490.29/735,728.14 = 135,496.45/x - Step 3: Cross multiply
490,490.29x = 735,728.14 × 135,496.45 - Step 4: Simplify right side
490,490.29x = 99,688,551,135.10 - Step 5: Solve for x
x = 99,688,551,135.10/490,490.29 - Step 6: Final answer
x = 203,242.66
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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.