Finding the Fourth Proportional to 402,149.28, 603,253.20 and 135,821.28
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Solution
The fourth proportional to 402,149.28, 603,253.20 and 135,821.28 is: 203,741.81
Step by Step Solution
- Step 1: Write the proportion equation
402,149.28 : 603,253.20 = 135,821.28 : x - Step 2: Convert to fraction form
402,149.28/603,253.20 = 135,821.28/x - Step 3: Cross multiply
402,149.28x = 603,253.20 × 135,821.28 - Step 4: Simplify right side
402,149.28x = 81,934,621,788.10 - Step 5: Solve for x
x = 81,934,621,788.10/402,149.28 - Step 6: Final answer
x = 203,741.81
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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.