Finding the Fourth Proportional to 470,857.36, 706,210.36 and 129,220.96
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Solution
The fourth proportional to 470,857.36, 706,210.36 and 129,220.96 is: 193,810.67
Step by Step Solution
- Step 1: Write the proportion equation
470,857.36 : 706,210.36 = 129,220.96 : x - Step 2: Convert to fraction form
470,857.36/706,210.36 = 129,220.96/x - Step 3: Cross multiply
470,857.36x = 706,210.36 × 129,220.96 - Step 4: Simplify right side
470,857.36x = 91,257,181,004.20 - Step 5: Solve for x
x = 91,257,181,004.20/470,857.36 - Step 6: Final answer
x = 193,810.67
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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.