Finding the Fourth Proportional to 490,423.08, 735,643.86 and 135,446.52
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Solution
The fourth proportional to 490,423.08, 735,643.86 and 135,446.52 is: 203,172.33
Step by Step Solution
- Step 1: Write the proportion equation
490,423.08 : 735,643.86 = 135,446.52 : x - Step 2: Convert to fraction form
490,423.08/735,643.86 = 135,446.52/x - Step 3: Cross multiply
490,423.08x = 735,643.86 × 135,446.52 - Step 4: Simplify right side
490,423.08x = 99,640,400,796.37 - Step 5: Solve for x
x = 99,640,400,796.37/490,423.08 - Step 6: Final answer
x = 203,172.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.