Finding the Fourth Proportional to 470,869.20, 706,044.60 and 155,163.60
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Solution
The fourth proportional to 470,869.20, 706,044.60 and 155,163.60 is: 232,659.99
Step by Step Solution
- Step 1: Write the proportion equation
470,869.20 : 706,044.60 = 155,163.60 : x - Step 2: Convert to fraction form
470,869.20/706,044.60 = 155,163.60/x - Step 3: Cross multiply
470,869.20x = 706,044.60 × 155,163.60 - Step 4: Simplify right side
470,869.20x = 109,552,421,896.56 - Step 5: Solve for x
x = 109,552,421,896.56/470,869.20 - Step 6: Final answer
x = 232,659.99
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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.