Finding the Fourth Proportional to 490,423.59, 735,644.61 and 135,447.03
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Solution
The fourth proportional to 490,423.59, 735,644.61 and 135,447.03 is: 203,173.09
Step by Step Solution
- Step 1: Write the proportion equation
490,423.59 : 735,644.61 = 135,447.03 : x - Step 2: Convert to fraction form
490,423.59/735,644.61 = 135,447.03/x - Step 3: Cross multiply
490,423.59x = 735,644.61 × 135,447.03 - Step 4: Simplify right side
490,423.59x = 99,640,877,560.01 - Step 5: Solve for x
x = 99,640,877,560.01/490,423.59 - Step 6: Final answer
x = 203,173.09
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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.